Finding the Fourth Proportional to 387,901,441.08, 581,837,989.86 and 115,265,122.20
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Solution
The fourth proportional to 387,901,441.08, 581,837,989.86 and 115,265,122.20 is: 172,893,472.15
Step by Step Solution
- Step 1: Write the proportion equation
387,901,441.08 : 581,837,989.86 = 115,265,122.20 : x - Step 2: Convert to fraction form
387,901,441.08/581,837,989.86 = 115,265,122.20/x - Step 3: Cross multiply
387,901,441.08x = 581,837,989.86 × 115,265,122.20 - Step 4: Simplify right side
387,901,441.08x = 67,065,627,001,815,264 - Step 5: Solve for x
x = 67,065,627,001,815,264/387,901,441.08 - Step 6: Final answer
x = 172,893,472.15
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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.