Finding the Fourth Proportional to 417,489,423.07, 576,119,620.01 and 231,862,396.18
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Solution
The fourth proportional to 417,489,423.07, 576,119,620.01 and 231,862,396.18 is: 319,961,340.82
Step by Step Solution
- Step 1: Write the proportion equation
417,489,423.07 : 576,119,620.01 = 231,862,396.18 : x - Step 2: Convert to fraction form
417,489,423.07/576,119,620.01 = 231,862,396.18/x - Step 3: Cross multiply
417,489,423.07x = 576,119,620.01 × 231,862,396.18 - Step 4: Simplify right side
417,489,423.07x = 133,580,475,581,829,680 - Step 5: Solve for x
x = 133,580,475,581,829,680/417,489,423.07 - Step 6: Final answer
x = 319,961,340.82
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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.