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Finding the Third Proportional to 3,929,352.75 and 8,589,153.38

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Solution

The third proportional to 3,929,352.75 and 8,589,153.38 is: 18,774,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,352.75 : 8,589,153.38 = 8,589,153.38 : x
  2. Step 2: Convert to fraction form
    3,929,352.75/8,589,153.38 = 8,589,153.38/x
  3. Step 3: Cross multiply
    3,929,352.75x = 8,589,153.38 × 8,589,153.38
  4. Step 4: Simplify right side
    3,929,352.75x = 73,773,555,699,273.89
  5. Step 5: Solve for x
    x = 73,773,555,699,273.89/3,929,352.75
  6. Step 6: Final answer
    x = 18,774,989.26

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.