Home / 391,625,494.22-587,236,085.76-115,240,790.18

Finding the Fourth Proportional to 391,625,494.22, 587,236,085.76 and 115,240,790.18

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Solution

The fourth proportional to 391,625,494.22, 587,236,085.76 and 115,240,790.18 is: 172,801,698.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,625,494.22 : 587,236,085.76 = 115,240,790.18 : x
  2. Step 2: Convert to fraction form
    391,625,494.22/587,236,085.76 = 115,240,790.18/x
  3. Step 3: Cross multiply
    391,625,494.22x = 587,236,085.76 × 115,240,790.18
  4. Step 4: Simplify right side
    391,625,494.22x = 67,673,550,545,192,648
  5. Step 5: Solve for x
    x = 67,673,550,545,192,648/391,625,494.22
  6. Step 6: Final answer
    x = 172,801,698.42

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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.