Home / 20,188,291-27,859,954.77-11,486,463.43

Finding the Fourth Proportional to 20,188,291, 27,859,954.77 and 11,486,463.43

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Solution

The fourth proportional to 20,188,291, 27,859,954.77 and 11,486,463.43 is: 15,851,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,291 : 27,859,954.77 = 11,486,463.43 : x
  2. Step 2: Convert to fraction form
    20,188,291/27,859,954.77 = 11,486,463.43/x
  3. Step 3: Cross multiply
    20,188,291x = 27,859,954.77 × 11,486,463.43
  4. Step 4: Simplify right side
    20,188,291x = 320,012,351,627,059.06
  5. Step 5: Solve for x
    x = 320,012,351,627,059.06/20,188,291
  6. Step 6: Final answer
    x = 15,851,383.93

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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.