Home / 38,643,387.20-57,972,079.20-19,425,780.80

Finding the Fourth Proportional to 38,643,387.20, 57,972,079.20 and 19,425,780.80

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Solution

The fourth proportional to 38,643,387.20, 57,972,079.20 and 19,425,780.80 is: 29,142,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,643,387.20 : 57,972,079.20 = 19,425,780.80 : x
  2. Step 2: Convert to fraction form
    38,643,387.20/57,972,079.20 = 19,425,780.80/x
  3. Step 3: Cross multiply
    38,643,387.20x = 57,972,079.20 × 19,425,780.80
  4. Step 4: Simplify right side
    38,643,387.20x = 1,126,152,903,059,439.50
  5. Step 5: Solve for x
    x = 1,126,152,903,059,439.50/38,643,387.20
  6. Step 6: Final answer
    x = 29,142,189.25

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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.