Find four numbers forming a geometric progression in which the third term is greater than the first term by 9, and the second term is greater than the `4^(t h)` by 18.

Find four numbers forming a geometric progression in which the third term is greater than the first term by 9, and the second term is greater than the by 18.

Find four numbers forming a geometric progression in which the third term is greater than the first term by 9, and the second term is greater than the 4th by 18.

Find four numbers forming a geometric progression in which the third term is greater than the first terms by 9, and second term is greater than the 4 th by 18 .

Find the 4 terms in G .P. in which 3rd term is 9 more than the first term and 2nd term is 18 more than the 4th term.

In an A.P. the third term is four times the first term, and the sixth term is 17 , find the series.

The third term of a geometric progression is 4. Then find the product of the first five terms.

The first term of a geometric progression is equal to b-2, the third term is b+6, and the arithmetic mean of the first and third term to the second term is in the ratio 5:3. Find the positive integral value of b .

Find the sum of the following geometric progression: 2,6,18 to 7 terms

A number is greater than 3 but less than 9 also it is greater than 6 but less than 9.

In a geometric progression with first term a and common ratio r, what is the arithmetic mean of first five terms?