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Finding the Third Proportional to 4,006,920 and 8,909,592

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Solution

The third proportional to 4,006,920 and 8,909,592 is: 19,810,934.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,006,920 : 8,909,592 = 8,909,592 : x
  2. Step 2: Convert to fraction form
    4,006,920/8,909,592 = 8,909,592/x
  3. Step 3: Cross multiply
    4,006,920x = 8,909,592 × 8,909,592
  4. Step 4: Simplify right side
    4,006,920x = 79,380,829,606,464
  5. Step 5: Solve for x
    x = 79,380,829,606,464/4,006,920
  6. Step 6: Final answer
    x = 19,810,934.48

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.