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Finding the Third Proportional to 7,218,690.75 and 11,009,855.25

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Solution

The third proportional to 7,218,690.75 and 11,009,855.25 is: 16,792,091.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,690.75 : 11,009,855.25 = 11,009,855.25 : x
  2. Step 2: Convert to fraction form
    7,218,690.75/11,009,855.25 = 11,009,855.25/x
  3. Step 3: Cross multiply
    7,218,690.75x = 11,009,855.25 × 11,009,855.25
  4. Step 4: Simplify right side
    7,218,690.75x = 121,216,912,625,952.56
  5. Step 5: Solve for x
    x = 121,216,912,625,952.56/7,218,690.75
  6. Step 6: Final answer
    x = 16,792,091.09

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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.