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Finding the Third Proportional to 18,650,742 and 40,135,836

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Solution

The third proportional to 18,650,742 and 40,135,836 is: 86,371,112.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650,742 : 40,135,836 = 40,135,836 : x
  2. Step 2: Convert to fraction form
    18,650,742/40,135,836 = 40,135,836/x
  3. Step 3: Cross multiply
    18,650,742x = 40,135,836 × 40,135,836
  4. Step 4: Simplify right side
    18,650,742x = 1,610,885,331,418,896
  5. Step 5: Solve for x
    x = 1,610,885,331,418,896/18,650,742
  6. Step 6: Final answer
    x = 86,371,112.28

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.