Home / 481,215,956.78-664,060,835.04-272,367,615

Finding the Fourth Proportional to 481,215,956.78, 664,060,835.04 and 272,367,615

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Solution

The fourth proportional to 481,215,956.78, 664,060,835.04 and 272,367,615 is: 375,857,581.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,215,956.78 : 664,060,835.04 = 272,367,615 : x
  2. Step 2: Convert to fraction form
    481,215,956.78/664,060,835.04 = 272,367,615/x
  3. Step 3: Cross multiply
    481,215,956.78x = 664,060,835.04 × 272,367,615
  4. Step 4: Simplify right side
    481,215,956.78x = 180,868,665,854,753,216
  5. Step 5: Solve for x
    x = 180,868,665,854,753,216/481,215,956.78
  6. Step 6: Final answer
    x = 375,857,581.83

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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.