Finding the Fourth Proportional to 156,728,305.62, 234,580,895.88 and 115,218,193.62
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Solution
The fourth proportional to 156,728,305.62, 234,580,895.88 and 115,218,193.62 is: 172,451,217.25
Step by Step Solution
- Step 1: Write the proportion equation
156,728,305.62 : 234,580,895.88 = 115,218,193.62 : x - Step 2: Convert to fraction form
156,728,305.62/234,580,895.88 = 115,218,193.62/x - Step 3: Cross multiply
156,728,305.62x = 234,580,895.88 × 115,218,193.62 - Step 4: Simplify right side
156,728,305.62x = 27,027,987,081,054,900 - Step 5: Solve for x
x = 27,027,987,081,054,900/156,728,305.62 - Step 6: Final answer
x = 172,451,217.25
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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.