Home / 18,660,017.57-27,978,478.98-7,287,092.69

Finding the Fourth Proportional to 18,660,017.57, 27,978,478.98 and 7,287,092.69

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Solution

The fourth proportional to 18,660,017.57, 27,978,478.98 and 7,287,092.69 is: 10,926,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660,017.57 : 27,978,478.98 = 7,287,092.69 : x
  2. Step 2: Convert to fraction form
    18,660,017.57/27,978,478.98 = 7,287,092.69/x
  3. Step 3: Cross multiply
    18,660,017.57x = 27,978,478.98 × 7,287,092.69
  4. Step 4: Simplify right side
    18,660,017.57x = 203,881,769,512,584.25
  5. Step 5: Solve for x
    x = 203,881,769,512,584.25/18,660,017.57
  6. Step 6: Final answer
    x = 10,926,129.56

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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.