Home / 99,168,434.40-148,752,651.60-68,557,432.80

Finding the Fourth Proportional to 99,168,434.40, 148,752,651.60 and 68,557,432.80

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Solution

The fourth proportional to 99,168,434.40, 148,752,651.60 and 68,557,432.80 is: 102,836,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,168,434.40 : 148,752,651.60 = 68,557,432.80 : x
  2. Step 2: Convert to fraction form
    99,168,434.40/148,752,651.60 = 68,557,432.80/x
  3. Step 3: Cross multiply
    99,168,434.40x = 148,752,651.60 × 68,557,432.80
  4. Step 4: Simplify right side
    99,168,434.40x = 10,198,099,915,888,812
  5. Step 5: Solve for x
    x = 10,198,099,915,888,812/99,168,434.40
  6. Step 6: Final answer
    x = 102,836,149.20

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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.