Home / 1,187,383,489.68-1,781,074,051.92-813,523,013.04

Finding the Fourth Proportional to 1,187,383,489.68, 1,781,074,051.92 and 813,523,013.04

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Solution

The fourth proportional to 1,187,383,489.68, 1,781,074,051.92 and 813,523,013.04 is: 1,220,283,709.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,383,489.68 : 1,781,074,051.92 = 813,523,013.04 : x
  2. Step 2: Convert to fraction form
    1,187,383,489.68/1,781,074,051.92 = 813,523,013.04/x
  3. Step 3: Cross multiply
    1,187,383,489.68x = 1,781,074,051.92 × 813,523,013.04
  4. Step 4: Simplify right side
    1,187,383,489.68x = 1,448,944,729,165,319,680
  5. Step 5: Solve for x
    x = 1,448,944,729,165,319,680/1,187,383,489.68
  6. Step 6: Final answer
    x = 1,220,283,709.31

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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.