Home / 87,619,569.20-131,504,003.40-39,171,978.80

Finding the Fourth Proportional to 87,619,569.20, 131,504,003.40 and 39,171,978.80

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Solution

The fourth proportional to 87,619,569.20, 131,504,003.40 and 39,171,978.80 is: 58,791,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,619,569.20 : 131,504,003.40 = 39,171,978.80 : x
  2. Step 2: Convert to fraction form
    87,619,569.20/131,504,003.40 = 39,171,978.80/x
  3. Step 3: Cross multiply
    87,619,569.20x = 131,504,003.40 × 39,171,978.80
  4. Step 4: Simplify right side
    87,619,569.20x = 5,151,272,033,299,928
  5. Step 5: Solve for x
    x = 5,151,272,033,299,928/87,619,569.20
  6. Step 6: Final answer
    x = 58,791,341.71

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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.