Home / 279,936,342.20-419,904,513.30-253,151,715.80

Finding the Fourth Proportional to 279,936,342.20, 419,904,513.30 and 253,151,715.80

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Solution

The fourth proportional to 279,936,342.20, 419,904,513.30 and 253,151,715.80 is: 379,727,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,342.20 : 419,904,513.30 = 253,151,715.80 : x
  2. Step 2: Convert to fraction form
    279,936,342.20/419,904,513.30 = 253,151,715.80/x
  3. Step 3: Cross multiply
    279,936,342.20x = 419,904,513.30 × 253,151,715.80
  4. Step 4: Simplify right side
    279,936,342.20x = 106,299,548,014,058,928
  5. Step 5: Solve for x
    x = 106,299,548,014,058,928/279,936,342.20
  6. Step 6: Final answer
    x = 379,727,573.70

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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.