Home / 18,728,083.80-28,093,996.80-5,081,446.80

Finding the Fourth Proportional to 18,728,083.80, 28,093,996.80 and 5,081,446.80

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Solution

The fourth proportional to 18,728,083.80, 28,093,996.80 and 5,081,446.80 is: 7,622,677.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728,083.80 : 28,093,996.80 = 5,081,446.80 : x
  2. Step 2: Convert to fraction form
    18,728,083.80/28,093,996.80 = 5,081,446.80/x
  3. Step 3: Cross multiply
    18,728,083.80x = 28,093,996.80 × 5,081,446.80
  4. Step 4: Simplify right side
    18,728,083.80x = 142,758,150,138,570.25
  5. Step 5: Solve for x
    x = 142,758,150,138,570.25/18,728,083.80
  6. Step 6: Final answer
    x = 7,622,677.88

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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.