Home / 87,407,134.34-120,624,700.32-47,716,781.42

Finding the Fourth Proportional to 87,407,134.34, 120,624,700.32 and 47,716,781.42

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Solution

The fourth proportional to 87,407,134.34, 120,624,700.32 and 47,716,781.42 is: 65,850,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,407,134.34 : 120,624,700.32 = 47,716,781.42 : x
  2. Step 2: Convert to fraction form
    87,407,134.34/120,624,700.32 = 47,716,781.42/x
  3. Step 3: Cross multiply
    87,407,134.34x = 120,624,700.32 × 47,716,781.42
  4. Step 4: Simplify right side
    87,407,134.34x = 5,755,822,459,324,005
  5. Step 5: Solve for x
    x = 5,755,822,459,324,005/87,407,134.34
  6. Step 6: Final answer
    x = 65,850,716.91

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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.