Finding the Fourth Proportional to 407,259,789.11, 562,299,687.20 and 381,240,437.75
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Solution
The fourth proportional to 407,259,789.11, 562,299,687.20 and 381,240,437.75 is: 526,375,018.18
Step by Step Solution
- Step 1: Write the proportion equation
407,259,789.11 : 562,299,687.20 = 381,240,437.75 : x - Step 2: Convert to fraction form
407,259,789.11/562,299,687.20 = 381,240,437.75/x - Step 3: Cross multiply
407,259,789.11x = 562,299,687.20 × 381,240,437.75 - Step 4: Simplify right side
407,259,789.11x = 214,371,378,894,816,096 - Step 5: Solve for x
x = 214,371,378,894,816,096/407,259,789.11 - Step 6: Final answer
x = 526,375,018.18
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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.