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Finding the Third Proportional to 331,366,999 and 720,912,870

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Solution

The third proportional to 331,366,999 and 720,912,870 is: 1,568,398,083.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,366,999 : 720,912,870 = 720,912,870 : x
  2. Step 2: Convert to fraction form
    331,366,999/720,912,870 = 720,912,870/x
  3. Step 3: Cross multiply
    331,366,999x = 720,912,870 × 720,912,870
  4. Step 4: Simplify right side
    331,366,999x = 519,715,366,131,636,928
  5. Step 5: Solve for x
    x = 519,715,366,131,636,928/331,366,999
  6. Step 6: Final answer
    x = 1,568,398,083.39

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.