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Finding the Third Proportional to 4,001,868 and 8,781,516

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Solution

The third proportional to 4,001,868 and 8,781,516 is: 19,269,756.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,001,868 : 8,781,516 = 8,781,516 : x
  2. Step 2: Convert to fraction form
    4,001,868/8,781,516 = 8,781,516/x
  3. Step 3: Cross multiply
    4,001,868x = 8,781,516 × 8,781,516
  4. Step 4: Simplify right side
    4,001,868x = 77,115,023,258,256
  5. Step 5: Solve for x
    x = 77,115,023,258,256/4,001,868
  6. Step 6: Final answer
    x = 19,269,756.84

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.