Finding the Fourth Proportional to 472,393,298.20, 708,589,947.30 and 416,910,857.80
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Solution
The fourth proportional to 472,393,298.20, 708,589,947.30 and 416,910,857.80 is: 625,366,286.70
Step by Step Solution
- Step 1: Write the proportion equation
472,393,298.20 : 708,589,947.30 = 416,910,857.80 : x - Step 2: Convert to fraction form
472,393,298.20/708,589,947.30 = 416,910,857.80/x - Step 3: Cross multiply
472,393,298.20x = 708,589,947.30 × 416,910,857.80 - Step 4: Simplify right side
472,393,298.20x = 295,418,842,757,299,776 - Step 5: Solve for x
x = 295,418,842,757,299,776/472,393,298.20 - Step 6: Final answer
x = 625,366,286.70
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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.