Home / 129,508,901.60-194,238,469.20-38,635,455.20

Finding the Fourth Proportional to 129,508,901.60, 194,238,469.20 and 38,635,455.20

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Solution

The fourth proportional to 129,508,901.60, 194,238,469.20 and 38,635,455.20 is: 57,945,759.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,508,901.60 : 194,238,469.20 = 38,635,455.20 : x
  2. Step 2: Convert to fraction form
    129,508,901.60/194,238,469.20 = 38,635,455.20/x
  3. Step 3: Cross multiply
    129,508,901.60x = 194,238,469.20 × 38,635,455.20
  4. Step 4: Simplify right side
    129,508,901.60x = 7,504,491,674,893,180
  5. Step 5: Solve for x
    x = 7,504,491,674,893,180/129,508,901.60
  6. Step 6: Final answer
    x = 57,945,759.57

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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.