Finding the Fourth Proportional to 702,310,765.47, 1,053,151,284.93 and 418,503,791.70
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Solution
The fourth proportional to 702,310,765.47, 1,053,151,284.93 and 418,503,791.70 is: 627,568,061.96
Step by Step Solution
- Step 1: Write the proportion equation
702,310,765.47 : 1,053,151,284.93 = 418,503,791.70 : x - Step 2: Convert to fraction form
702,310,765.47/1,053,151,284.93 = 418,503,791.70/x - Step 3: Cross multiply
702,310,765.47x = 1,053,151,284.93 × 418,503,791.70 - Step 4: Simplify right side
702,310,765.47x = 440,747,805,981,523,584 - Step 5: Solve for x
x = 440,747,805,981,523,584/702,310,765.47 - Step 6: Final answer
x = 627,568,061.96
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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.