Home / 510,275,882.43-765,710,890.89-215,152,495.70

Finding the Fourth Proportional to 510,275,882.43, 765,710,890.89 and 215,152,495.70

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Solution

The fourth proportional to 510,275,882.43, 765,710,890.89 and 215,152,495.70 is: 322,853,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,275,882.43 : 765,710,890.89 = 215,152,495.70 : x
  2. Step 2: Convert to fraction form
    510,275,882.43/765,710,890.89 = 215,152,495.70/x
  3. Step 3: Cross multiply
    510,275,882.43x = 765,710,890.89 × 215,152,495.70
  4. Step 4: Simplify right side
    510,275,882.43x = 164,744,609,155,825,344
  5. Step 5: Solve for x
    x = 164,744,609,155,825,344/510,275,882.43
  6. Step 6: Final answer
    x = 322,853,998.84

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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.