Home / 87,231,763-120,380,654.70-48,074,949.64

Finding the Fourth Proportional to 87,231,763, 120,380,654.70 and 48,074,949.64

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Solution

The fourth proportional to 87,231,763, 120,380,654.70 and 48,074,949.64 is: 66,343,883.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,231,763 : 120,380,654.70 = 48,074,949.64 : x
  2. Step 2: Convert to fraction form
    87,231,763/120,380,654.70 = 48,074,949.64/x
  3. Step 3: Cross multiply
    87,231,763x = 120,380,654.70 × 48,074,949.64
  4. Step 4: Simplify right side
    87,231,763x = 5,787,293,912,332,730
  5. Step 5: Solve for x
    x = 5,787,293,912,332,730/87,231,763
  6. Step 6: Final answer
    x = 66,343,883.39

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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.