Home / 259,956,601.20-389,840,423.40-87,439,042.80

Finding the Fourth Proportional to 259,956,601.20, 389,840,423.40 and 87,439,042.80

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Solution

The fourth proportional to 259,956,601.20, 389,840,423.40 and 87,439,042.80 is: 131,126,785.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,956,601.20 : 389,840,423.40 = 87,439,042.80 : x
  2. Step 2: Convert to fraction form
    259,956,601.20/389,840,423.40 = 87,439,042.80/x
  3. Step 3: Cross multiply
    259,956,601.20x = 389,840,423.40 × 87,439,042.80
  4. Step 4: Simplify right side
    259,956,601.20x = 34,087,273,466,842,720
  5. Step 5: Solve for x
    x = 34,087,273,466,842,720/259,956,601.20
  6. Step 6: Final answer
    x = 131,126,785.43

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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.