Finding the Fourth Proportional to 487,497,472.56, 672,747,789.84 and 264,479,142.76
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Solution
The fourth proportional to 487,497,472.56, 672,747,789.84 and 264,479,142.76 is: 364,981,910.20
Step by Step Solution
- Step 1: Write the proportion equation
487,497,472.56 : 672,747,789.84 = 264,479,142.76 : x - Step 2: Convert to fraction form
487,497,472.56/672,747,789.84 = 264,479,142.76/x - Step 3: Cross multiply
487,497,472.56x = 672,747,789.84 × 264,479,142.76 - Step 4: Simplify right side
487,497,472.56x = 177,927,758,750,567,840 - Step 5: Solve for x
x = 177,927,758,750,567,840/487,497,472.56 - Step 6: Final answer
x = 364,981,910.20
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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.