Home / 18,906,969.20-28,367,452.20-6,127,890.80

Finding the Fourth Proportional to 18,906,969.20, 28,367,452.20 and 6,127,890.80

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Solution

The fourth proportional to 18,906,969.20, 28,367,452.20 and 6,127,890.80 is: 9,194,104.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,906,969.20 : 28,367,452.20 = 6,127,890.80 : x
  2. Step 2: Convert to fraction form
    18,906,969.20/28,367,452.20 = 6,127,890.80/x
  3. Step 3: Cross multiply
    18,906,969.20x = 28,367,452.20 × 6,127,890.80
  4. Step 4: Simplify right side
    18,906,969.20x = 173,832,649,355,819.75
  5. Step 5: Solve for x
    x = 173,832,649,355,819.75/18,906,969.20
  6. Step 6: Final answer
    x = 9,194,104.43

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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.