Home / 279,659,439.50-419,367,351.89-80,194,650.56

Finding the Fourth Proportional to 279,659,439.50, 419,367,351.89 and 80,194,650.56

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Solution

The fourth proportional to 279,659,439.50, 419,367,351.89 and 80,194,650.56 is: 120,257,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,659,439.50 : 419,367,351.89 = 80,194,650.56 : x
  2. Step 2: Convert to fraction form
    279,659,439.50/419,367,351.89 = 80,194,650.56/x
  3. Step 3: Cross multiply
    279,659,439.50x = 419,367,351.89 × 80,194,650.56
  4. Step 4: Simplify right side
    279,659,439.50x = 33,631,018,242,899,760
  5. Step 5: Solve for x
    x = 33,631,018,242,899,760/279,659,439.50
  6. Step 6: Final answer
    x = 120,257,046.58

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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.