Home / 18,715,496.92-28,074,112.40-5,762,227.78

Finding the Fourth Proportional to 18,715,496.92, 28,074,112.40 and 5,762,227.78

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Solution

The fourth proportional to 18,715,496.92, 28,074,112.40 and 5,762,227.78 is: 8,643,608.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,496.92 : 28,074,112.40 = 5,762,227.78 : x
  2. Step 2: Convert to fraction form
    18,715,496.92/28,074,112.40 = 5,762,227.78/x
  3. Step 3: Cross multiply
    18,715,496.92x = 28,074,112.40 × 5,762,227.78
  4. Step 4: Simplify right side
    18,715,496.92x = 161,769,430,387,208.16
  5. Step 5: Solve for x
    x = 161,769,430,387,208.16/18,715,496.92
  6. Step 6: Final answer
    x = 8,643,608.61

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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.