Home / 426,568,078.85-639,876,032.98-119,836,277.15

Finding the Fourth Proportional to 426,568,078.85, 639,876,032.98 and 119,836,277.15

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Solution

The fourth proportional to 426,568,078.85, 639,876,032.98 and 119,836,277.15 is: 179,761,134.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,568,078.85 : 639,876,032.98 = 119,836,277.15 : x
  2. Step 2: Convert to fraction form
    426,568,078.85/639,876,032.98 = 119,836,277.15/x
  3. Step 3: Cross multiply
    426,568,078.85x = 639,876,032.98 × 119,836,277.15
  4. Step 4: Simplify right side
    426,568,078.85x = 76,680,361,626,334,848
  5. Step 5: Solve for x
    x = 76,680,361,626,334,848/426,568,078.85
  6. Step 6: Final answer
    x = 179,761,134.11

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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.