Home / 15,067,519,882.38-20,782,591,170.26-9,915,926,013.05

Finding the Fourth Proportional to 15,067,519,882.38, 20,782,591,170.26 and 9,915,926,013.05

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Solution

The fourth proportional to 15,067,519,882.38, 20,782,591,170.26 and 9,915,926,013.05 is: 13,677,011,081.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067,519,882.38 : 20,782,591,170.26 = 9,915,926,013.05 : x
  2. Step 2: Convert to fraction form
    15,067,519,882.38/20,782,591,170.26 = 9,915,926,013.05/x
  3. Step 3: Cross multiply
    15,067,519,882.38x = 20,782,591,170.26 × 9,915,926,013.05
  4. Step 4: Simplify right side
    15,067,519,882.38x = 206,078,636,403,620,806,656
  5. Step 5: Solve for x
    x = 206,078,636,403,620,806,656/15,067,519,882.38
  6. Step 6: Final answer
    x = 13,677,011,081.61

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1.5x scale

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.