Home / 12,888,229.02-17,785,770.39-7,087,108.38

Finding the Fourth Proportional to 12,888,229.02, 17,785,770.39 and 7,087,108.38

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Solution

The fourth proportional to 12,888,229.02, 17,785,770.39 and 7,087,108.38 is: 9,780,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888,229.02 : 17,785,770.39 = 7,087,108.38 : x
  2. Step 2: Convert to fraction form
    12,888,229.02/17,785,770.39 = 7,087,108.38/x
  3. Step 3: Cross multiply
    12,888,229.02x = 17,785,770.39 × 7,087,108.38
  4. Step 4: Simplify right side
    12,888,229.02x = 126,049,682,375,724.88
  5. Step 5: Solve for x
    x = 126,049,682,375,724.88/12,888,229.02
  6. Step 6: Final answer
    x = 9,780,217.45

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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.