Home / 20,279,941.64-27,975,851.70-13,751,361.80

Finding the Fourth Proportional to 20,279,941.64, 27,975,851.70 and 13,751,361.80

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Solution

The fourth proportional to 20,279,941.64, 27,975,851.70 and 13,751,361.80 is: 18,969,781.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279,941.64 : 27,975,851.70 = 13,751,361.80 : x
  2. Step 2: Convert to fraction form
    20,279,941.64/27,975,851.70 = 13,751,361.80/x
  3. Step 3: Cross multiply
    20,279,941.64x = 27,975,851.70 × 13,751,361.80
  4. Step 4: Simplify right side
    20,279,941.64x = 384,706,058,389,845.06
  5. Step 5: Solve for x
    x = 384,706,058,389,845.06/20,279,941.64
  6. Step 6: Final answer
    x = 18,969,781.33

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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.