Geometric Progression

bₙ = b₁ · qⁿ⁻¹ — formulas, examples, and an interactive trainer.

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Geometric Progression — Key Concepts

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Frequently Asked Questions

What is a geometric progression?

A sequence where each term is obtained by multiplying the previous term by a constant q (the common ratio).

How do you find the nth term of a geometric progression?

bₙ = b₁ · qⁿ⁻¹. For example: b₁=2, q=3 → b₄=2·3³=54.

How does a geometric progression differ from an arithmetic progression?

In an arithmetic progression there is a constant difference d. In a geometric progression there is a constant common ratio q (the ratio of consecutive terms).