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Finding the Third Proportional to 5,197,806 and 7,999,686

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Solution

The third proportional to 5,197,806 and 7,999,686 is: 12,311,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197,806 : 7,999,686 = 7,999,686 : x
  2. Step 2: Convert to fraction form
    5,197,806/7,999,686 = 7,999,686/x
  3. Step 3: Cross multiply
    5,197,806x = 7,999,686 × 7,999,686
  4. Step 4: Simplify right side
    5,197,806x = 63,994,976,098,596
  5. Step 5: Solve for x
    x = 63,994,976,098,596/5,197,806
  6. Step 6: Final answer
    x = 12,311,920.86

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.