Home / 391,445,267.23-587,396,863.32-145,971,488.35

Finding the Fourth Proportional to 391,445,267.23, 587,396,863.32 and 145,971,488.35

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Solution

The fourth proportional to 391,445,267.23, 587,396,863.32 and 145,971,488.35 is: 219,042,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,445,267.23 : 587,396,863.32 = 145,971,488.35 : x
  2. Step 2: Convert to fraction form
    391,445,267.23/587,396,863.32 = 145,971,488.35/x
  3. Step 3: Cross multiply
    391,445,267.23x = 587,396,863.32 × 145,971,488.35
  4. Step 4: Simplify right side
    391,445,267.23x = 85,743,194,390,941,920
  5. Step 5: Solve for x
    x = 85,743,194,390,941,920/391,445,267.23
  6. Step 6: Final answer
    x = 219,042,613.54

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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.