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Finding the Third Proportional to 9,902,493 and 21,269,219

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Solution

The third proportional to 9,902,493 and 21,269,219 is: 45,683,412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,902,493 : 21,269,219 = 21,269,219 : x
  2. Step 2: Convert to fraction form
    9,902,493/21,269,219 = 21,269,219/x
  3. Step 3: Cross multiply
    9,902,493x = 21,269,219 × 21,269,219
  4. Step 4: Simplify right side
    9,902,493x = 452,379,676,869,961
  5. Step 5: Solve for x
    x = 452,379,676,869,961/9,902,493
  6. Step 6: Final answer
    x = 45,683,412.94

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.