Home / 391,445,217.01-587,396,788.02-145,971,438.13

Finding the Fourth Proportional to 391,445,217.01, 587,396,788.02 and 145,971,438.13

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Solution

The fourth proportional to 391,445,217.01, 587,396,788.02 and 145,971,438.13 is: 219,042,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,445,217.01 : 587,396,788.02 = 145,971,438.13 : x
  2. Step 2: Convert to fraction form
    391,445,217.01/587,396,788.02 = 145,971,438.13/x
  3. Step 3: Cross multiply
    391,445,217.01x = 587,396,788.02 × 145,971,438.13
  4. Step 4: Simplify right side
    391,445,217.01x = 85,743,153,900,547,680
  5. Step 5: Solve for x
    x = 85,743,153,900,547,680/391,445,217.01
  6. Step 6: Final answer
    x = 219,042,538.20

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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.