Home / 392,334,627.20-587,494,171.20-311,041,212.80

Finding the Fourth Proportional to 392,334,627.20, 587,494,171.20 and 311,041,212.80

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Solution

The fourth proportional to 392,334,627.20, 587,494,171.20 and 311,041,212.80 is: 465,762,863.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,334,627.20 : 587,494,171.20 = 311,041,212.80 : x
  2. Step 2: Convert to fraction form
    392,334,627.20/587,494,171.20 = 311,041,212.80/x
  3. Step 3: Cross multiply
    392,334,627.20x = 587,494,171.20 × 311,041,212.80
  4. Step 4: Simplify right side
    392,334,627.20x = 182,734,899,522,978,848
  5. Step 5: Solve for x
    x = 182,734,899,522,978,848/392,334,627.20
  6. Step 6: Final answer
    x = 465,762,863.78

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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.