Home / 381,672,043.20-572,508,064.80-260,739,691.20

Finding the Fourth Proportional to 381,672,043.20, 572,508,064.80 and 260,739,691.20

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Solution

The fourth proportional to 381,672,043.20, 572,508,064.80 and 260,739,691.20 is: 391,109,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,672,043.20 : 572,508,064.80 = 260,739,691.20 : x
  2. Step 2: Convert to fraction form
    381,672,043.20/572,508,064.80 = 260,739,691.20/x
  3. Step 3: Cross multiply
    381,672,043.20x = 572,508,064.80 × 260,739,691.20
  4. Step 4: Simplify right side
    381,672,043.20x = 149,275,576,025,461,568
  5. Step 5: Solve for x
    x = 149,275,576,025,461,568/381,672,043.20
  6. Step 6: Final answer
    x = 391,109,536.80

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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.