Home / 399,177,546.60-598,766,319.90-140,390,711.40

Finding the Fourth Proportional to 399,177,546.60, 598,766,319.90 and 140,390,711.40

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Solution

The fourth proportional to 399,177,546.60, 598,766,319.90 and 140,390,711.40 is: 210,586,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,177,546.60 : 598,766,319.90 = 140,390,711.40 : x
  2. Step 2: Convert to fraction form
    399,177,546.60/598,766,319.90 = 140,390,711.40/x
  3. Step 3: Cross multiply
    399,177,546.60x = 598,766,319.90 × 140,390,711.40
  4. Step 4: Simplify right side
    399,177,546.60x = 84,061,229,613,120,976
  5. Step 5: Solve for x
    x = 84,061,229,613,120,976/399,177,546.60
  6. Step 6: Final answer
    x = 210,586,067.10

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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.