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Finding the Third Proportional to 18,093,780 and 39,021,912

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Solution

The third proportional to 18,093,780 and 39,021,912 is: 84,156,523.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,093,780 : 39,021,912 = 39,021,912 : x
  2. Step 2: Convert to fraction form
    18,093,780/39,021,912 = 39,021,912/x
  3. Step 3: Cross multiply
    18,093,780x = 39,021,912 × 39,021,912
  4. Step 4: Simplify right side
    18,093,780x = 1,522,709,616,135,744
  5. Step 5: Solve for x
    x = 1,522,709,616,135,744/18,093,780
  6. Step 6: Final answer
    x = 84,156,523.19

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.