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Finding the Third Proportional to 12,212,073 and 18,891,993

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Solution

The third proportional to 12,212,073 and 18,891,993 is: 29,225,783.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212,073 : 18,891,993 = 18,891,993 : x
  2. Step 2: Convert to fraction form
    12,212,073/18,891,993 = 18,891,993/x
  3. Step 3: Cross multiply
    12,212,073x = 18,891,993 × 18,891,993
  4. Step 4: Simplify right side
    12,212,073x = 356,907,399,512,049
  5. Step 5: Solve for x
    x = 356,907,399,512,049/12,212,073
  6. Step 6: Final answer
    x = 29,225,783.33

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.