Home / 13,707,906.40-20,561,859.60-5,188,520.80

Finding the Fourth Proportional to 13,707,906.40, 20,561,859.60 and 5,188,520.80

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Solution

The fourth proportional to 13,707,906.40, 20,561,859.60 and 5,188,520.80 is: 7,782,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707,906.40 : 20,561,859.60 = 5,188,520.80 : x
  2. Step 2: Convert to fraction form
    13,707,906.40/20,561,859.60 = 5,188,520.80/x
  3. Step 3: Cross multiply
    13,707,906.40x = 20,561,859.60 × 5,188,520.80
  4. Step 4: Simplify right side
    13,707,906.40x = 106,685,636,221,279.69
  5. Step 5: Solve for x
    x = 106,685,636,221,279.69/13,707,906.40
  6. Step 6: Final answer
    x = 7,782,781.20

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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.