Home / 13,481,348.22-18,607,720.82-8,321,745.02

Finding the Fourth Proportional to 13,481,348.22, 18,607,720.82 and 8,321,745.02

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Solution

The fourth proportional to 13,481,348.22, 18,607,720.82 and 8,321,745.02 is: 11,486,144.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481,348.22 : 18,607,720.82 = 8,321,745.02 : x
  2. Step 2: Convert to fraction form
    13,481,348.22/18,607,720.82 = 8,321,745.02/x
  3. Step 3: Cross multiply
    13,481,348.22x = 18,607,720.82 × 8,321,745.02
  4. Step 4: Simplify right side
    13,481,348.22x = 154,848,707,932,738
  5. Step 5: Solve for x
    x = 154,848,707,932,738/13,481,348.22
  6. Step 6: Final answer
    x = 11,486,144.07

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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.