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Finding the Third Proportional to 8,603,812 and 18,724,915

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Solution

The third proportional to 8,603,812 and 18,724,915 is: 40,751,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603,812 : 18,724,915 = 18,724,915 : x
  2. Step 2: Convert to fraction form
    8,603,812/18,724,915 = 18,724,915/x
  3. Step 3: Cross multiply
    8,603,812x = 18,724,915 × 18,724,915
  4. Step 4: Simplify right side
    8,603,812x = 350,622,441,757,225
  5. Step 5: Solve for x
    x = 350,622,441,757,225/8,603,812
  6. Step 6: Final answer
    x = 40,751,987.81

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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.