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Finding the Third Proportional to 8,538,790 and 18,593,036

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Solution

The third proportional to 8,538,790 and 18,593,036 is: 40,485,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538,790 : 18,593,036 = 18,593,036 : x
  2. Step 2: Convert to fraction form
    8,538,790/18,593,036 = 18,593,036/x
  3. Step 3: Cross multiply
    8,538,790x = 18,593,036 × 18,593,036
  4. Step 4: Simplify right side
    8,538,790x = 345,700,987,697,296
  5. Step 5: Solve for x
    x = 345,700,987,697,296/8,538,790
  6. Step 6: Final answer
    x = 40,485,945.63

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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.