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Finding the Third Proportional to 18,709,290 and 27,987,642

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Solution

The third proportional to 18,709,290 and 27,987,642 is: 41,867,334.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,290 : 27,987,642 = 27,987,642 : x
  2. Step 2: Convert to fraction form
    18,709,290/27,987,642 = 27,987,642/x
  3. Step 3: Cross multiply
    18,709,290x = 27,987,642 × 27,987,642
  4. Step 4: Simplify right side
    18,709,290x = 783,308,104,720,164
  5. Step 5: Solve for x
    x = 783,308,104,720,164/18,709,290
  6. Step 6: Final answer
    x = 41,867,334.61

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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.