Home / 252,499,445.82-378,414,339.03-129,672,801.90

Finding the Fourth Proportional to 252,499,445.82, 378,414,339.03 and 129,672,801.90

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Solution

The fourth proportional to 252,499,445.82, 378,414,339.03 and 129,672,801.90 is: 194,337,248.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,499,445.82 : 378,414,339.03 = 129,672,801.90 : x
  2. Step 2: Convert to fraction form
    252,499,445.82/378,414,339.03 = 129,672,801.90/x
  3. Step 3: Cross multiply
    252,499,445.82x = 378,414,339.03 × 129,672,801.90
  4. Step 4: Simplify right side
    252,499,445.82x = 49,070,047,621,156,624
  5. Step 5: Solve for x
    x = 49,070,047,621,156,624/252,499,445.82
  6. Step 6: Final answer
    x = 194,337,248.79

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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.