Home / 725,940,007.20-1,088,910,010.80-635,240,743.20

Finding the Fourth Proportional to 725,940,007.20, 1,088,910,010.80 and 635,240,743.20

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Solution

The fourth proportional to 725,940,007.20, 1,088,910,010.80 and 635,240,743.20 is: 952,861,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,940,007.20 : 1,088,910,010.80 = 635,240,743.20 : x
  2. Step 2: Convert to fraction form
    725,940,007.20/1,088,910,010.80 = 635,240,743.20/x
  3. Step 3: Cross multiply
    725,940,007.20x = 1,088,910,010.80 × 635,240,743.20
  4. Step 4: Simplify right side
    725,940,007.20x = 691,720,004,538,512,000
  5. Step 5: Solve for x
    x = 691,720,004,538,512,000/725,940,007.20
  6. Step 6: Final answer
    x = 952,861,114.80

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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.