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Finding the Third Proportional to 3,487,815 and 5,422,708.13

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Solution

The third proportional to 3,487,815 and 5,422,708.13 is: 8,430,998.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487,815 : 5,422,708.13 = 5,422,708.13 : x
  2. Step 2: Convert to fraction form
    3,487,815/5,422,708.13 = 5,422,708.13/x
  3. Step 3: Cross multiply
    3,487,815x = 5,422,708.13 × 5,422,708.13
  4. Step 4: Simplify right side
    3,487,815x = 29,405,763,408,941.02
  5. Step 5: Solve for x
    x = 29,405,763,408,941.02/3,487,815
  6. Step 6: Final answer
    x = 8,430,998.61

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.