Home / 20,423,781.24-28,183,997.57-11,131,151.95

Finding the Fourth Proportional to 20,423,781.24, 28,183,997.57 and 11,131,151.95

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Solution

The fourth proportional to 20,423,781.24, 28,183,997.57 and 11,131,151.95 is: 15,360,542.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423,781.24 : 28,183,997.57 = 11,131,151.95 : x
  2. Step 2: Convert to fraction form
    20,423,781.24/28,183,997.57 = 11,131,151.95/x
  3. Step 3: Cross multiply
    20,423,781.24x = 28,183,997.57 × 11,131,151.95
  4. Step 4: Simplify right side
    20,423,781.24x = 313,720,359,393,752.75
  5. Step 5: Solve for x
    x = 313,720,359,393,752.75/20,423,781.24
  6. Step 6: Final answer
    x = 15,360,542.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.