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Finding the Third Proportional to 3,898,969.17 and 8,694,433.69

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Solution

The third proportional to 3,898,969.17 and 8,694,433.69 is: 19,387,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898,969.17 : 8,694,433.69 = 8,694,433.69 : x
  2. Step 2: Convert to fraction form
    3,898,969.17/8,694,433.69 = 8,694,433.69/x
  3. Step 3: Cross multiply
    3,898,969.17x = 8,694,433.69 × 8,694,433.69
  4. Step 4: Simplify right side
    3,898,969.17x = 75,593,177,146,334.84
  5. Step 5: Solve for x
    x = 75,593,177,146,334.84/3,898,969.17
  6. Step 6: Final answer
    x = 19,387,990.47

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.