Home / 12,498,768.60-18,716,660.10-8,215,747.80

Finding the Fourth Proportional to 12,498,768.60, 18,716,660.10 and 8,215,747.80

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Solution

The fourth proportional to 12,498,768.60, 18,716,660.10 and 8,215,747.80 is: 12,302,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,498,768.60 : 18,716,660.10 = 8,215,747.80 : x
  2. Step 2: Convert to fraction form
    12,498,768.60/18,716,660.10 = 8,215,747.80/x
  3. Step 3: Cross multiply
    12,498,768.60x = 18,716,660.10 × 8,215,747.80
  4. Step 4: Simplify right side
    12,498,768.60x = 153,771,359,039,922.78
  5. Step 5: Solve for x
    x = 153,771,359,039,922.78/12,498,768.60
  6. Step 6: Final answer
    x = 12,302,920.71

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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.