Home / 15,204,821.38-20,982,486.41-8,235,325.69

Finding the Fourth Proportional to 15,204,821.38, 20,982,486.41 and 8,235,325.69

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Solution

The fourth proportional to 15,204,821.38, 20,982,486.41 and 8,235,325.69 is: 11,364,658.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,204,821.38 : 20,982,486.41 = 8,235,325.69 : x
  2. Step 2: Convert to fraction form
    15,204,821.38/20,982,486.41 = 8,235,325.69/x
  3. Step 3: Cross multiply
    15,204,821.38x = 20,982,486.41 × 8,235,325.69
  4. Step 4: Simplify right side
    15,204,821.38x = 172,797,609,309,598.50
  5. Step 5: Solve for x
    x = 172,797,609,309,598.50/15,204,821.38
  6. Step 6: Final answer
    x = 11,364,658.95

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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.