Home / 13,580,081.80-18,789,860.82-11,841,376.80

Finding the Fourth Proportional to 13,580,081.80, 18,789,860.82 and 11,841,376.80

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Solution

The fourth proportional to 13,580,081.80, 18,789,860.82 and 11,841,376.80 is: 16,384,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580,081.80 : 18,789,860.82 = 11,841,376.80 : x
  2. Step 2: Convert to fraction form
    13,580,081.80/18,789,860.82 = 11,841,376.80/x
  3. Step 3: Cross multiply
    13,580,081.80x = 18,789,860.82 × 11,841,376.80
  4. Step 4: Simplify right side
    13,580,081.80x = 222,497,821,989,177
  5. Step 5: Solve for x
    x = 222,497,821,989,177/13,580,081.80
  6. Step 6: Final answer
    x = 16,384,129.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.