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Finding the Third Proportional to 4,991,074 and 10,218,650

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Solution

The third proportional to 4,991,074 and 10,218,650 is: 20,921,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991,074 : 10,218,650 = 10,218,650 : x
  2. Step 2: Convert to fraction form
    4,991,074/10,218,650 = 10,218,650/x
  3. Step 3: Cross multiply
    4,991,074x = 10,218,650 × 10,218,650
  4. Step 4: Simplify right side
    4,991,074x = 104,420,807,822,500
  5. Step 5: Solve for x
    x = 104,420,807,822,500/4,991,074
  6. Step 6: Final answer
    x = 20,921,510.65

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.