Home / 156,031,334.71-215,322,704.42-89,951,517.90

Finding the Fourth Proportional to 156,031,334.71, 215,322,704.42 and 89,951,517.90

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Solution

The fourth proportional to 156,031,334.71, 215,322,704.42 and 89,951,517.90 is: 124,132,784.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,031,334.71 : 215,322,704.42 = 89,951,517.90 : x
  2. Step 2: Convert to fraction form
    156,031,334.71/215,322,704.42 = 89,951,517.90/x
  3. Step 3: Cross multiply
    156,031,334.71x = 215,322,704.42 × 89,951,517.90
  4. Step 4: Simplify right side
    156,031,334.71x = 19,368,604,100,912,040
  5. Step 5: Solve for x
    x = 19,368,604,100,912,040/156,031,334.71
  6. Step 6: Final answer
    x = 124,132,784.85

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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.