Finding the Fourth Proportional to 156,266,025.62, 215,651,074.82 and 85,704,444.99
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Solution
The fourth proportional to 156,266,025.62, 215,651,074.82 and 85,704,444.99 is: 118,274,305.66
Step by Step Solution
- Step 1: Write the proportion equation
156,266,025.62 : 215,651,074.82 = 85,704,444.99 : x - Step 2: Convert to fraction form
156,266,025.62/215,651,074.82 = 85,704,444.99/x - Step 3: Cross multiply
156,266,025.62x = 215,651,074.82 × 85,704,444.99 - Step 4: Simplify right side
156,266,025.62x = 18,482,255,678,516,540 - Step 5: Solve for x
x = 18,482,255,678,516,540/156,266,025.62 - Step 6: Final answer
x = 118,274,305.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.