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Finding the Third Proportional to 18,285,078 and 39,321,996

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Solution

The third proportional to 18,285,078 and 39,321,996 is: 84,561,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285,078 : 39,321,996 = 39,321,996 : x
  2. Step 2: Convert to fraction form
    18,285,078/39,321,996 = 39,321,996/x
  3. Step 3: Cross multiply
    18,285,078x = 39,321,996 × 39,321,996
  4. Step 4: Simplify right side
    18,285,078x = 1,546,219,369,424,016
  5. Step 5: Solve for x
    x = 1,546,219,369,424,016/18,285,078
  6. Step 6: Final answer
    x = 84,561,814.25

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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.