Home / 885,146,930.20-1,327,720,395.30-425,981,906.20

Finding the Fourth Proportional to 885,146,930.20, 1,327,720,395.30 and 425,981,906.20

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Solution

The fourth proportional to 885,146,930.20, 1,327,720,395.30 and 425,981,906.20 is: 638,972,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,146,930.20 : 1,327,720,395.30 = 425,981,906.20 : x
  2. Step 2: Convert to fraction form
    885,146,930.20/1,327,720,395.30 = 425,981,906.20/x
  3. Step 3: Cross multiply
    885,146,930.20x = 1,327,720,395.30 × 425,981,906.20
  4. Step 4: Simplify right side
    885,146,930.20x = 565,584,864,890,511,488
  5. Step 5: Solve for x
    x = 565,584,864,890,511,488/885,146,930.20
  6. Step 6: Final answer
    x = 638,972,859.30

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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.