Home / 419,857,039.20-629,785,558.80-267,179,944.80

Finding the Fourth Proportional to 419,857,039.20, 629,785,558.80 and 267,179,944.80

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Solution

The fourth proportional to 419,857,039.20, 629,785,558.80 and 267,179,944.80 is: 400,769,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,857,039.20 : 629,785,558.80 = 267,179,944.80 : x
  2. Step 2: Convert to fraction form
    419,857,039.20/629,785,558.80 = 267,179,944.80/x
  3. Step 3: Cross multiply
    419,857,039.20x = 629,785,558.80 × 267,179,944.80
  4. Step 4: Simplify right side
    419,857,039.20x = 168,266,070,836,021,152
  5. Step 5: Solve for x
    x = 168,266,070,836,021,152/419,857,039.20
  6. Step 6: Final answer
    x = 400,769,917.20

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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.