Home / 13,479,879.40-20,219,819.10-11,086,426.60

Finding the Fourth Proportional to 13,479,879.40, 20,219,819.10 and 11,086,426.60

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Solution

The fourth proportional to 13,479,879.40, 20,219,819.10 and 11,086,426.60 is: 16,629,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,879.40 : 20,219,819.10 = 11,086,426.60 : x
  2. Step 2: Convert to fraction form
    13,479,879.40/20,219,819.10 = 11,086,426.60/x
  3. Step 3: Cross multiply
    13,479,879.40x = 20,219,819.10 × 11,086,426.60
  4. Step 4: Simplify right side
    13,479,879.40x = 224,165,540,317,428.06
  5. Step 5: Solve for x
    x = 224,165,540,317,428.06/13,479,879.40
  6. Step 6: Final answer
    x = 16,629,639.90

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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.