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Finding the Third Proportional to 5,225,638 and 10,661,220

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Solution

The third proportional to 5,225,638 and 10,661,220 is: 21,750,762.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225,638 : 10,661,220 = 10,661,220 : x
  2. Step 2: Convert to fraction form
    5,225,638/10,661,220 = 10,661,220/x
  3. Step 3: Cross multiply
    5,225,638x = 10,661,220 × 10,661,220
  4. Step 4: Simplify right side
    5,225,638x = 113,661,611,888,400
  5. Step 5: Solve for x
    x = 113,661,611,888,400/5,225,638
  6. Step 6: Final answer
    x = 21,750,762.66

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.