Home / 77,700,989.20-107,227,113.92-42,419,230.42

Finding the Fourth Proportional to 77,700,989.20, 107,227,113.92 and 42,419,230.42

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Solution

The fourth proportional to 77,700,989.20, 107,227,113.92 and 42,419,230.42 is: 58,538,400.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,700,989.20 : 107,227,113.92 = 42,419,230.42 : x
  2. Step 2: Convert to fraction form
    77,700,989.20/107,227,113.92 = 42,419,230.42/x
  3. Step 3: Cross multiply
    77,700,989.20x = 107,227,113.92 × 42,419,230.42
  4. Step 4: Simplify right side
    77,700,989.20x = 4,548,491,652,644,070
  5. Step 5: Solve for x
    x = 4,548,491,652,644,070/77,700,989.20
  6. Step 6: Final answer
    x = 58,538,400.86

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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.