Home / 419,904,513.20-629,856,769.80-267,227,418.80

Finding the Fourth Proportional to 419,904,513.20, 629,856,769.80 and 267,227,418.80

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Solution

The fourth proportional to 419,904,513.20, 629,856,769.80 and 267,227,418.80 is: 400,841,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,513.20 : 629,856,769.80 = 267,227,418.80 : x
  2. Step 2: Convert to fraction form
    419,904,513.20/629,856,769.80 = 267,227,418.80/x
  3. Step 3: Cross multiply
    419,904,513.20x = 629,856,769.80 × 267,227,418.80
  4. Step 4: Simplify right side
    419,904,513.20x = 168,314,998,807,359,776
  5. Step 5: Solve for x
    x = 168,314,998,807,359,776/419,904,513.20
  6. Step 6: Final answer
    x = 400,841,128.20

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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.