Type the missing number in this sequence: 1, 3, 9, _____, 81

Identify Sequence Type: Is the given sequence geometric or arithmetic? Each term seems to be multiplied by a common ratio to obtain the next number. The given sequence appears to be geometric. Find Common Ratio: Find the common ratio in the geometric sequence. Two consecutive terms are 1 and 3. 3 / 1 = 3 Common Ratio: 3 Multiply by Common Ratio: We multiply each term by the common ratio to get the next term. Sequence: 1, 3, 9, _____, 81 Common Ratio: 3 Find the missing number in the sequence. The number before the missing term is 9. 9 * 3 = 27 Missing Number: 27

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Type the missing number in this sequence: $\newline$ $1$ , $3$ , $9$ , $\_$ , $81$

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Math Problems

Algebra 2

Find terms of a geometric sequence

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Q. Type the missing number in this sequence:

\newline

1

3

9

\_

81

Identify Sequence Type: Is the given sequence geometric or arithmetic? Each term seems to be multiplied by a common ratio to obtain the next number. The given sequence appears to be geometric.
Find Common Ratio: Find the common ratio in the geometric sequence. Two consecutive terms are $1$ and $3$ . $\frac{3}{1} = 3$ Common Ratio: $3$
Multiply by Common Ratio: We multiply each term by the common ratio to get the next term. $\newline$ Sequence: $1, 3, 9, \_\_\_\_, 81$ $\newline$ Common Ratio: $3$ $\newline$ Find the missing number in the sequence. $\newline$ The number before the missing term is $9$ . $\newline$ $9 \times 3 = 27$ $\newline$ Missing Number: $27$