Home / 273,906,856.80-378,491,964.98-199,437,690.38

Finding the Fourth Proportional to 273,906,856.80, 378,491,964.98 and 199,437,690.38

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Solution

The fourth proportional to 273,906,856.80, 378,491,964.98 and 199,437,690.38 is: 275,588,439.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,906,856.80 : 378,491,964.98 = 199,437,690.38 : x
  2. Step 2: Convert to fraction form
    273,906,856.80/378,491,964.98 = 199,437,690.38/x
  3. Step 3: Cross multiply
    273,906,856.80x = 378,491,964.98 × 199,437,690.38
  4. Step 4: Simplify right side
    273,906,856.80x = 75,485,563,320,109,392
  5. Step 5: Solve for x
    x = 75,485,563,320,109,392/273,906,856.80
  6. Step 6: Final answer
    x = 275,588,439.81

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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.