Home / 18,928,190.40-28,354,960.80-11,332,593.60

Finding the Fourth Proportional to 18,928,190.40, 28,354,960.80 and 11,332,593.60

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Solution

The fourth proportional to 18,928,190.40, 28,354,960.80 and 11,332,593.60 is: 16,976,543.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928,190.40 : 28,354,960.80 = 11,332,593.60 : x
  2. Step 2: Convert to fraction form
    18,928,190.40/28,354,960.80 = 11,332,593.60/x
  3. Step 3: Cross multiply
    18,928,190.40x = 28,354,960.80 × 11,332,593.60
  4. Step 4: Simplify right side
    18,928,190.40x = 321,335,247,290,330.88
  5. Step 5: Solve for x
    x = 321,335,247,290,330.88/18,928,190.40
  6. Step 6: Final answer
    x = 16,976,543.48

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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.