Home / 391,445,250.73-587,396,838.60-145,971,471.85

Finding the Fourth Proportional to 391,445,250.73, 587,396,838.60 and 145,971,471.85

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Solution

The fourth proportional to 391,445,250.73, 587,396,838.60 and 145,971,471.85 is: 219,042,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,445,250.73 : 587,396,838.60 = 145,971,471.85 : x
  2. Step 2: Convert to fraction form
    391,445,250.73/587,396,838.60 = 145,971,471.85/x
  3. Step 3: Cross multiply
    391,445,250.73x = 587,396,838.60 × 145,971,471.85
  4. Step 4: Simplify right side
    391,445,250.73x = 85,743,181,090,478,896
  5. Step 5: Solve for x
    x = 85,743,181,090,478,896/391,445,250.73
  6. Step 6: Final answer
    x = 219,042,588.79

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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.