Home / 800,297,149.20-1,104,386,346.11-443,080,846.55

Finding the Fourth Proportional to 800,297,149.20, 1,104,386,346.11 and 443,080,846.55

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Solution

The fourth proportional to 800,297,149.20, 1,104,386,346.11 and 443,080,846.55 is: 611,438,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,297,149.20 : 1,104,386,346.11 = 443,080,846.55 : x
  2. Step 2: Convert to fraction form
    800,297,149.20/1,104,386,346.11 = 443,080,846.55/x
  3. Step 3: Cross multiply
    800,297,149.20x = 1,104,386,346.11 × 443,080,846.55
  4. Step 4: Simplify right side
    800,297,149.20x = 489,332,437,144,942,784
  5. Step 5: Solve for x
    x = 489,332,437,144,942,784/800,297,149.20
  6. Step 6: Final answer
    x = 611,438,435.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.