Home / 445,126,219.20-667,378,288.80-263,279,793.60

Finding the Fourth Proportional to 445,126,219.20, 667,378,288.80 and 263,279,793.60

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Solution

The fourth proportional to 445,126,219.20, 667,378,288.80 and 263,279,793.60 is: 394,735,718.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,126,219.20 : 667,378,288.80 = 263,279,793.60 : x
  2. Step 2: Convert to fraction form
    445,126,219.20/667,378,288.80 = 263,279,793.60/x
  3. Step 3: Cross multiply
    445,126,219.20x = 667,378,288.80 × 263,279,793.60
  4. Step 4: Simplify right side
    445,126,219.20x = 175,707,218,128,385,184
  5. Step 5: Solve for x
    x = 175,707,218,128,385,184/445,126,219.20
  6. Step 6: Final answer
    x = 394,735,718.88

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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.