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Finding the Third Proportional to 2,120,888 and 3,212,220

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Solution

The third proportional to 2,120,888 and 3,212,220 is: 4,865,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,888 : 3,212,220 = 3,212,220 : x
  2. Step 2: Convert to fraction form
    2,120,888/3,212,220 = 3,212,220/x
  3. Step 3: Cross multiply
    2,120,888x = 3,212,220 × 3,212,220
  4. Step 4: Simplify right side
    2,120,888x = 10,318,357,328,400
  5. Step 5: Solve for x
    x = 10,318,357,328,400/2,120,888
  6. Step 6: Final answer
    x = 4,865,111.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.