Home / 717,494,067.40-990,141,803.94-387,469,177.24

Finding the Fourth Proportional to 717,494,067.40, 990,141,803.94 and 387,469,177.24

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Solution

The fourth proportional to 717,494,067.40, 990,141,803.94 and 387,469,177.24 is: 534,707,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,494,067.40 : 990,141,803.94 = 387,469,177.24 : x
  2. Step 2: Convert to fraction form
    717,494,067.40/990,141,803.94 = 387,469,177.24/x
  3. Step 3: Cross multiply
    717,494,067.40x = 990,141,803.94 × 387,469,177.24
  4. Step 4: Simplify right side
    717,494,067.40x = 383,649,430,123,561,216
  5. Step 5: Solve for x
    x = 383,649,430,123,561,216/717,494,067.40
  6. Step 6: Final answer
    x = 534,707,459.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.