Home / 168,123,372.93-252,257,886.50-90,309,480.32

Finding the Fourth Proportional to 168,123,372.93, 252,257,886.50 and 90,309,480.32

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Solution

The fourth proportional to 168,123,372.93, 252,257,886.50 and 90,309,480.32 is: 135,503,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,123,372.93 : 252,257,886.50 = 90,309,480.32 : x
  2. Step 2: Convert to fraction form
    168,123,372.93/252,257,886.50 = 90,309,480.32/x
  3. Step 3: Cross multiply
    168,123,372.93x = 252,257,886.50 × 90,309,480.32
  4. Step 4: Simplify right side
    168,123,372.93x = 22,781,278,636,436,540
  5. Step 5: Solve for x
    x = 22,781,278,636,436,540/168,123,372.93
  6. Step 6: Final answer
    x = 135,503,340.43

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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.