Home / 87,855,023.85-131,782,535.78-65,180,207.85

Finding the Fourth Proportional to 87,855,023.85, 131,782,535.78 and 65,180,207.85

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Solution

The fourth proportional to 87,855,023.85, 131,782,535.78 and 65,180,207.85 is: 97,770,311.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,855,023.85 : 131,782,535.78 = 65,180,207.85 : x
  2. Step 2: Convert to fraction form
    87,855,023.85/131,782,535.78 = 65,180,207.85/x
  3. Step 3: Cross multiply
    87,855,023.85x = 131,782,535.78 × 65,180,207.85
  4. Step 4: Simplify right side
    87,855,023.85x = 8,589,613,072,814,561
  5. Step 5: Solve for x
    x = 8,589,613,072,814,561/87,855,023.85
  6. Step 6: Final answer
    x = 97,770,311.78

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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.