The first and third term of a gp 5and 80respectively what is the forth term

To find the fourth term of a geometric sequence, we need to know the common ratio. The common ratio is found by dividing the third term by the first term.

In this case, the common ratio (r) is:
r = 80/5
r = 16

To find the fourth term (a4), we multiply the third term (a3) by the common ratio:
a4 = a3 * r
a4 = 80 * 16
a4 = 1280

Therefore, the fourth term of the geometric sequence is 1280.