Home / 725,794,018.80-1,088,691,028.20-419,684,002.80

Finding the Fourth Proportional to 725,794,018.80, 1,088,691,028.20 and 419,684,002.80

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Solution

The fourth proportional to 725,794,018.80, 1,088,691,028.20 and 419,684,002.80 is: 629,526,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,794,018.80 : 1,088,691,028.20 = 419,684,002.80 : x
  2. Step 2: Convert to fraction form
    725,794,018.80/1,088,691,028.20 = 419,684,002.80/x
  3. Step 3: Cross multiply
    725,794,018.80x = 1,088,691,028.20 × 419,684,002.80
  4. Step 4: Simplify right side
    725,794,018.80x = 456,906,208,527,423,680
  5. Step 5: Solve for x
    x = 456,906,208,527,423,680/725,794,018.80
  6. Step 6: Final answer
    x = 629,526,004.20

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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.