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Finding the Third Proportional to 18,709,305.75 and 27,987,670.13

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Solution

The third proportional to 18,709,305.75 and 27,987,670.13 is: 41,867,383.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,305.75 : 27,987,670.13 = 27,987,670.13 : x
  2. Step 2: Convert to fraction form
    18,709,305.75/27,987,670.13 = 27,987,670.13/x
  3. Step 3: Cross multiply
    18,709,305.75x = 27,987,670.13 × 27,987,670.13
  4. Step 4: Simplify right side
    18,709,305.75x = 783,309,679,025,817.50
  5. Step 5: Solve for x
    x = 783,309,679,025,817.50/18,709,305.75
  6. Step 6: Final answer
    x = 41,867,383.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.