Home / 766,521,009-1,149,790,727.79-213,789,793.77

Finding the Fourth Proportional to 766,521,009, 1,149,790,727.79 and 213,789,793.77

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Solution

The fourth proportional to 766,521,009, 1,149,790,727.79 and 213,789,793.77 is: 320,687,260.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,521,009 : 1,149,790,727.79 = 213,789,793.77 : x
  2. Step 2: Convert to fraction form
    766,521,009/1,149,790,727.79 = 213,789,793.77/x
  3. Step 3: Cross multiply
    766,521,009x = 1,149,790,727.79 × 213,789,793.77
  4. Step 4: Simplify right side
    766,521,009x = 245,813,522,572,882,304
  5. Step 5: Solve for x
    x = 245,813,522,572,882,304/766,521,009
  6. Step 6: Final answer
    x = 320,687,260.61

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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.