Home / 885,146,871.20-1,327,720,306.80-425,981,847.20

Finding the Fourth Proportional to 885,146,871.20, 1,327,720,306.80 and 425,981,847.20

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Solution

The fourth proportional to 885,146,871.20, 1,327,720,306.80 and 425,981,847.20 is: 638,972,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,146,871.20 : 1,327,720,306.80 = 425,981,847.20 : x
  2. Step 2: Convert to fraction form
    885,146,871.20/1,327,720,306.80 = 425,981,847.20/x
  3. Step 3: Cross multiply
    885,146,871.20x = 1,327,720,306.80 × 425,981,847.20
  4. Step 4: Simplify right side
    885,146,871.20x = 565,584,748,855,614,656
  5. Step 5: Solve for x
    x = 565,584,748,855,614,656/885,146,871.20
  6. Step 6: Final answer
    x = 638,972,770.80

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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.