Home / 15,134,115.28-20,885,520.28-8,259,040.21

Finding the Fourth Proportional to 15,134,115.28, 20,885,520.28 and 8,259,040.21

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Solution

The fourth proportional to 15,134,115.28, 20,885,520.28 and 8,259,040.21 is: 11,397,716.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134,115.28 : 20,885,520.28 = 8,259,040.21 : x
  2. Step 2: Convert to fraction form
    15,134,115.28/20,885,520.28 = 8,259,040.21/x
  3. Step 3: Cross multiply
    15,134,115.28x = 20,885,520.28 × 8,259,040.21
  4. Step 4: Simplify right side
    15,134,115.28x = 172,494,351,726,429.06
  5. Step 5: Solve for x
    x = 172,494,351,726,429.06/15,134,115.28
  6. Step 6: Final answer
    x = 11,397,716.26

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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.