Home / 168,930,229.78-253,491,201.49-91,206,097.80

Finding the Fourth Proportional to 168,930,229.78, 253,491,201.49 and 91,206,097.80

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Solution

The fourth proportional to 168,930,229.78, 253,491,201.49 and 91,206,097.80 is: 136,860,900.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,930,229.78 : 253,491,201.49 = 91,206,097.80 : x
  2. Step 2: Convert to fraction form
    168,930,229.78/253,491,201.49 = 91,206,097.80/x
  3. Step 3: Cross multiply
    168,930,229.78x = 253,491,201.49 × 91,206,097.80
  4. Step 4: Simplify right side
    168,930,229.78x = 23,119,943,314,536,444
  5. Step 5: Solve for x
    x = 23,119,943,314,536,444/168,930,229.78
  6. Step 6: Final answer
    x = 136,860,900.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.