![]() To understand more differences, click here. The ratio of two terms in an AP is not the same throughout but in GP, it is the same throughout. If each successive term of a progression is a product of the preceding term and a fixed number, then the progression is a geometric progression. If each successive term of a progression is less than the preceding term by a fixed number, then the progression is an arithmetic progression (AP). What is the Difference Between Arithmetic Progression and Geometric Progression? The common ratio is calculated by finding the ratio of any term by its preceding term. How to Find the Common Ratio in Geometric Progression? In order to get the next term in the GP, we have to multiply with a fixed term known as the common ratio, every time, and if we want to find the preceding term in the progression, we just have to divide the term by the same common ratio. The common ratio can have both negative as well as positive values. In geometric progression, r is the common ratio of the two consecutive terms. So the infinite geometric series with common ratio |r| 1 can not have a finite sum.
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