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Finding the Third Proportional to 3,906,889 and 8,445,415

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Solution

The third proportional to 3,906,889 and 8,445,415 is: 18,256,222.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906,889 : 8,445,415 = 8,445,415 : x
  2. Step 2: Convert to fraction form
    3,906,889/8,445,415 = 8,445,415/x
  3. Step 3: Cross multiply
    3,906,889x = 8,445,415 × 8,445,415
  4. Step 4: Simplify right side
    3,906,889x = 71,325,034,522,225
  5. Step 5: Solve for x
    x = 71,325,034,522,225/3,906,889
  6. Step 6: Final answer
    x = 18,256,222.41

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.