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Finding the Third Proportional to 18,709,278 and 27,987,628

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Solution

The third proportional to 18,709,278 and 27,987,628 is: 41,867,319.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,278 : 27,987,628 = 27,987,628 : x
  2. Step 2: Convert to fraction form
    18,709,278/27,987,628 = 27,987,628/x
  3. Step 3: Cross multiply
    18,709,278x = 27,987,628 × 27,987,628
  4. Step 4: Simplify right side
    18,709,278x = 783,307,321,066,384
  5. Step 5: Solve for x
    x = 783,307,321,066,384/18,709,278
  6. Step 6: Final answer
    x = 41,867,319.58

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