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Finding the Third Proportional to 11,178,721 and 15,821,083.50

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Solution

The third proportional to 11,178,721 and 15,821,083.50 is: 22,391,352.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178,721 : 15,821,083.50 = 15,821,083.50 : x
  2. Step 2: Convert to fraction form
    11,178,721/15,821,083.50 = 15,821,083.50/x
  3. Step 3: Cross multiply
    11,178,721x = 15,821,083.50 × 15,821,083.50
  4. Step 4: Simplify right side
    11,178,721x = 250,306,683,113,972.25
  5. Step 5: Solve for x
    x = 250,306,683,113,972.25/11,178,721
  6. Step 6: Final answer
    x = 22,391,352.56

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.