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Finding the Third Proportional to 8,628,711 and 18,724,170

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Solution

The third proportional to 8,628,711 and 18,724,170 is: 40,631,160.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628,711 : 18,724,170 = 18,724,170 : x
  2. Step 2: Convert to fraction form
    8,628,711/18,724,170 = 18,724,170/x
  3. Step 3: Cross multiply
    8,628,711x = 18,724,170 × 18,724,170
  4. Step 4: Simplify right side
    8,628,711x = 350,594,542,188,900
  5. Step 5: Solve for x
    x = 350,594,542,188,900/8,628,711
  6. Step 6: Final answer
    x = 40,631,160.57

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.