Home / 426,494,112.75-639,765,100.17-119,762,310.78

Finding the Fourth Proportional to 426,494,112.75, 639,765,100.17 and 119,762,310.78

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Solution

The fourth proportional to 426,494,112.75, 639,765,100.17 and 119,762,310.78 is: 179,650,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,494,112.75 : 639,765,100.17 = 119,762,310.78 : x
  2. Step 2: Convert to fraction form
    426,494,112.75/639,765,100.17 = 119,762,310.78/x
  3. Step 3: Cross multiply
    426,494,112.75x = 639,765,100.17 × 119,762,310.78
  4. Step 4: Simplify right side
    426,494,112.75x = 76,619,746,752,757,360
  5. Step 5: Solve for x
    x = 76,619,746,752,757,360/426,494,112.75
  6. Step 6: Final answer
    x = 179,650,186.16

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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.