Home / 279,914,517.20-419,843,426.88-75,463,259.60

Finding the Fourth Proportional to 279,914,517.20, 419,843,426.88 and 75,463,259.60

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Solution

The fourth proportional to 279,914,517.20, 419,843,426.88 and 75,463,259.60 is: 113,187,246.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,914,517.20 : 419,843,426.88 = 75,463,259.60 : x
  2. Step 2: Convert to fraction form
    279,914,517.20/419,843,426.88 = 75,463,259.60/x
  3. Step 3: Cross multiply
    279,914,517.20x = 419,843,426.88 × 75,463,259.60
  4. Step 4: Simplify right side
    279,914,517.20x = 31,682,753,513,999,056
  5. Step 5: Solve for x
    x = 31,682,753,513,999,056/279,914,517.20
  6. Step 6: Final answer
    x = 113,187,246.70

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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.