Finding the Fourth Proportional to 18,468,613.30, 27,702,919.95 and 15,322,885.30
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Solution
The fourth proportional to 18,468,613.30, 27,702,919.95 and 15,322,885.30 is: 22,984,327.95
Step by Step Solution
- Step 1: Write the proportion equation
18,468,613.30 : 27,702,919.95 = 15,322,885.30 : x - Step 2: Convert to fraction form
18,468,613.30/27,702,919.95 = 15,322,885.30/x - Step 3: Cross multiply
18,468,613.30x = 27,702,919.95 × 15,322,885.30 - Step 4: Simplify right side
18,468,613.30x = 424,488,664,868,931.75 - Step 5: Solve for x
x = 424,488,664,868,931.75/18,468,613.30 - Step 6: Final answer
x = 22,984,327.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.