Geometric Sequences

Find the next three numbers in the sequence: 3, -12, 48, __, __, __,

-192, 768, -3072

Find the next number in the sequence 10, -40, 160.

-640

The common ratio is the value you multiply by to get the next number. What is it for 64, 16, 4, 1, . . . ?

1/4

Find the 5th term in the sequence: 125, 25, 5, . . .

1/5

Find the 5th term in the sequence: 2, 6, 18, . . .

162

What is the next number in the sequence? -160, 80, -40

20

What are the two missing terms in the geometric sequence? 80, 40, __ , __ , 5

20, 10

Find the next three numbers: 3, 9, 27, 81, ___, ___, ___

243, 729, 2217

Find the missing term in this geometric sequence: 1, 5, __, 125

25

The common ratio is the value you multiply by to get the next number. What is it for 2, 6, 18, 54, . . . ?

3

What are the two missing terms in the geometric sequence? 6, 18, __ , __ , 486

54, 162

Find the missing numbers in the geometric sequence 81, 27, __, 3, 1, __,

9 and 1/3