Home / 20,757,851.78-28,645,664.36-11,338,650.52

Finding the Fourth Proportional to 20,757,851.78, 28,645,664.36 and 11,338,650.52

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Solution

The fourth proportional to 20,757,851.78, 28,645,664.36 and 11,338,650.52 is: 15,647,244.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,851.78 : 28,645,664.36 = 11,338,650.52 : x
  2. Step 2: Convert to fraction form
    20,757,851.78/28,645,664.36 = 11,338,650.52/x
  3. Step 3: Cross multiply
    20,757,851.78x = 28,645,664.36 × 11,338,650.52
  4. Step 4: Simplify right side
    20,757,851.78x = 324,803,177,091,259.44
  5. Step 5: Solve for x
    x = 324,803,177,091,259.44/20,757,851.78
  6. Step 6: Final answer
    x = 15,647,244.26

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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.