Home / 18,959,219.22-26,190,507.15-15,086,785.80

Finding the Fourth Proportional to 18,959,219.22, 26,190,507.15 and 15,086,785.80

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Solution

The fourth proportional to 18,959,219.22, 26,190,507.15 and 15,086,785.80 is: 20,841,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959,219.22 : 26,190,507.15 = 15,086,785.80 : x
  2. Step 2: Convert to fraction form
    18,959,219.22/26,190,507.15 = 15,086,785.80/x
  3. Step 3: Cross multiply
    18,959,219.22x = 26,190,507.15 × 15,086,785.80
  4. Step 4: Simplify right side
    18,959,219.22x = 395,130,571,365,418.44
  5. Step 5: Solve for x
    x = 395,130,571,365,418.44/18,959,219.22
  6. Step 6: Final answer
    x = 20,841,078.25

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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.