Home / 13,815,221.09-20,729,819.09-9,207,351.61

Finding the Fourth Proportional to 13,815,221.09, 20,729,819.09 and 9,207,351.61

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Solution

The fourth proportional to 13,815,221.09, 20,729,819.09 and 9,207,351.61 is: 13,815,684.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815,221.09 : 20,729,819.09 = 9,207,351.61 : x
  2. Step 2: Convert to fraction form
    13,815,221.09/20,729,819.09 = 9,207,351.61/x
  3. Step 3: Cross multiply
    13,815,221.09x = 20,729,819.09 × 9,207,351.61
  4. Step 4: Simplify right side
    13,815,221.09x = 190,866,733,144,514.06
  5. Step 5: Solve for x
    x = 190,866,733,144,514.06/13,815,221.09
  6. Step 6: Final answer
    x = 13,815,684.31

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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.