Home / 86,324,989.60-129,466,748.40-49,854,512.80

Finding the Fourth Proportional to 86,324,989.60, 129,466,748.40 and 49,854,512.80

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Solution

The fourth proportional to 86,324,989.60, 129,466,748.40 and 49,854,512.80 is: 74,769,793.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,324,989.60 : 129,466,748.40 = 49,854,512.80 : x
  2. Step 2: Convert to fraction form
    86,324,989.60/129,466,748.40 = 49,854,512.80/x
  3. Step 3: Cross multiply
    86,324,989.60x = 129,466,748.40 × 49,854,512.80
  4. Step 4: Simplify right side
    86,324,989.60x = 6,454,501,665,282,179
  5. Step 5: Solve for x
    x = 6,454,501,665,282,179/86,324,989.60
  6. Step 6: Final answer
    x = 74,769,793.72

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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.