Home / 327,399,152.80-491,098,729.20-197,940,125.20

Finding the Fourth Proportional to 327,399,152.80, 491,098,729.20 and 197,940,125.20

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Solution

The fourth proportional to 327,399,152.80, 491,098,729.20 and 197,940,125.20 is: 296,910,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,399,152.80 : 491,098,729.20 = 197,940,125.20 : x
  2. Step 2: Convert to fraction form
    327,399,152.80/491,098,729.20 = 197,940,125.20/x
  3. Step 3: Cross multiply
    327,399,152.80x = 491,098,729.20 × 197,940,125.20
  4. Step 4: Simplify right side
    327,399,152.80x = 97,208,143,943,408,880
  5. Step 5: Solve for x
    x = 97,208,143,943,408,880/327,399,152.80
  6. Step 6: Final answer
    x = 296,910,187.80

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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.