Home / 387,841,331.20-581,761,996.80-242,722,508.80

Finding the Fourth Proportional to 387,841,331.20, 581,761,996.80 and 242,722,508.80

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Solution

The fourth proportional to 387,841,331.20, 581,761,996.80 and 242,722,508.80 is: 364,083,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,841,331.20 : 581,761,996.80 = 242,722,508.80 : x
  2. Step 2: Convert to fraction form
    387,841,331.20/581,761,996.80 = 242,722,508.80/x
  3. Step 3: Cross multiply
    387,841,331.20x = 581,761,996.80 × 242,722,508.80
  4. Step 4: Simplify right side
    387,841,331.20x = 141,206,731,387,793,568
  5. Step 5: Solve for x
    x = 141,206,731,387,793,568/387,841,331.20
  6. Step 6: Final answer
    x = 364,083,763.20

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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.