Home / 128,160,520.20-192,240,780.30-41,907,645.90

Finding the Fourth Proportional to 128,160,520.20, 192,240,780.30 and 41,907,645.90

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Solution

The fourth proportional to 128,160,520.20, 192,240,780.30 and 41,907,645.90 is: 62,861,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,160,520.20 : 192,240,780.30 = 41,907,645.90 : x
  2. Step 2: Convert to fraction form
    128,160,520.20/192,240,780.30 = 41,907,645.90/x
  3. Step 3: Cross multiply
    128,160,520.20x = 192,240,780.30 × 41,907,645.90
  4. Step 4: Simplify right side
    128,160,520.20x = 8,056,358,548,352,096
  5. Step 5: Solve for x
    x = 8,056,358,548,352,096/128,160,520.20
  6. Step 6: Final answer
    x = 62,861,468.85

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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.