Home / 168,257,340.21-252,829,874.27-90,591,666.74

Finding the Fourth Proportional to 168,257,340.21, 252,829,874.27 and 90,591,666.74

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Solution

The fourth proportional to 168,257,340.21, 252,829,874.27 and 90,591,666.74 is: 136,126,481.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,257,340.21 : 252,829,874.27 = 90,591,666.74 : x
  2. Step 2: Convert to fraction form
    168,257,340.21/252,829,874.27 = 90,591,666.74/x
  3. Step 3: Cross multiply
    168,257,340.21x = 252,829,874.27 × 90,591,666.74
  4. Step 4: Simplify right side
    168,257,340.21x = 22,904,279,711,694,384
  5. Step 5: Solve for x
    x = 22,904,279,711,694,384/168,257,340.21
  6. Step 6: Final answer
    x = 136,126,481.51

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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.