Home / 18,191,769.60-27,288,091.80-5,412,691.20

Finding the Fourth Proportional to 18,191,769.60, 27,288,091.80 and 5,412,691.20

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Solution

The fourth proportional to 18,191,769.60, 27,288,091.80 and 5,412,691.20 is: 8,119,166.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,769.60 : 27,288,091.80 = 5,412,691.20 : x
  2. Step 2: Convert to fraction form
    18,191,769.60/27,288,091.80 = 5,412,691.20/x
  3. Step 3: Cross multiply
    18,191,769.60x = 27,288,091.80 × 5,412,691.20
  4. Step 4: Simplify right side
    18,191,769.60x = 147,702,014,350,652.16
  5. Step 5: Solve for x
    x = 147,702,014,350,652.16/18,191,769.60
  6. Step 6: Final answer
    x = 8,119,166.94

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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.