Home / 391,445,268.23-587,396,864.82-145,971,489.35

Finding the Fourth Proportional to 391,445,268.23, 587,396,864.82 and 145,971,489.35

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Solution

The fourth proportional to 391,445,268.23, 587,396,864.82 and 145,971,489.35 is: 219,042,615.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,445,268.23 : 587,396,864.82 = 145,971,489.35 : x
  2. Step 2: Convert to fraction form
    391,445,268.23/587,396,864.82 = 145,971,489.35/x
  3. Step 3: Cross multiply
    391,445,268.23x = 587,396,864.82 × 145,971,489.35
  4. Step 4: Simplify right side
    391,445,268.23x = 85,743,195,197,296,016
  5. Step 5: Solve for x
    x = 85,743,195,197,296,016/391,445,268.23
  6. Step 6: Final answer
    x = 219,042,615.04

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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.