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Finding the Third Proportional to 9,069,921 and 13,868,415

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Solution

The third proportional to 9,069,921 and 13,868,415 is: 21,205,579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,069,921 : 13,868,415 = 13,868,415 : x
  2. Step 2: Convert to fraction form
    9,069,921/13,868,415 = 13,868,415/x
  3. Step 3: Cross multiply
    9,069,921x = 13,868,415 × 13,868,415
  4. Step 4: Simplify right side
    9,069,921x = 192,332,934,612,225
  5. Step 5: Solve for x
    x = 192,332,934,612,225/9,069,921
  6. Step 6: Final answer
    x = 21,205,579.92

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.