Home / 18,940,556.40-28,412,908.20-18,343,359.60

Finding the Fourth Proportional to 18,940,556.40, 28,412,908.20 and 18,343,359.60

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Solution

The fourth proportional to 18,940,556.40, 28,412,908.20 and 18,343,359.60 is: 27,517,047.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940,556.40 : 28,412,908.20 = 18,343,359.60 : x
  2. Step 2: Convert to fraction form
    18,940,556.40/28,412,908.20 = 18,343,359.60/x
  3. Step 3: Cross multiply
    18,940,556.40x = 28,412,908.20 × 18,343,359.60
  4. Step 4: Simplify right side
    18,940,556.40x = 521,188,192,394,388.75
  5. Step 5: Solve for x
    x = 521,188,192,394,388.75/18,940,556.40
  6. Step 6: Final answer
    x = 27,517,047.62

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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.