Finding the Fourth Proportional to 272,387,431.08, 408,578,454.12 and 124,793,125.56
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Solution
The fourth proportional to 272,387,431.08, 408,578,454.12 and 124,793,125.56 is: 187,188,454.78
Step by Step Solution
- Step 1: Write the proportion equation
272,387,431.08 : 408,578,454.12 = 124,793,125.56 : x - Step 2: Convert to fraction form
272,387,431.08/408,578,454.12 = 124,793,125.56/x - Step 3: Cross multiply
272,387,431.08x = 408,578,454.12 × 124,793,125.56 - Step 4: Simplify right side
272,387,431.08x = 50,987,782,326,107,864 - Step 5: Solve for x
x = 50,987,782,326,107,864/272,387,431.08 - Step 6: Final answer
x = 187,188,454.78
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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.