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Finding the Fourth Proportional to 485,654,694.48, 728,123,023.44 and 252,150,148.08

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Solution

The fourth proportional to 485,654,694.48, 728,123,023.44 and 252,150,148.08 is: 378,038,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,654,694.48 : 728,123,023.44 = 252,150,148.08 : x
  2. Step 2: Convert to fraction form
    485,654,694.48/728,123,023.44 = 252,150,148.08/x
  3. Step 3: Cross multiply
    485,654,694.48x = 728,123,023.44 × 252,150,148.08
  4. Step 4: Simplify right side
    485,654,694.48x = 183,596,328,180,853,344
  5. Step 5: Solve for x
    x = 183,596,328,180,853,344/485,654,694.48
  6. Step 6: Final answer
    x = 378,038,821.14

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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.