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Finding the Third Proportional to 39,644,428.50 and 81,423,261

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Solution

The third proportional to 39,644,428.50 and 81,423,261 is: 167,230,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,644,428.50 : 81,423,261 = 81,423,261 : x
  2. Step 2: Convert to fraction form
    39,644,428.50/81,423,261 = 81,423,261/x
  3. Step 3: Cross multiply
    39,644,428.50x = 81,423,261 × 81,423,261
  4. Step 4: Simplify right side
    39,644,428.50x = 6,629,747,431,874,121
  5. Step 5: Solve for x
    x = 6,629,747,431,874,121/39,644,428.50
  6. Step 6: Final answer
    x = 167,230,243.51

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.