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Finding the Third Proportional to 990,177.75 and 2,169,343.69

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Solution

The third proportional to 990,177.75 and 2,169,343.69 is: 4,752,734.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,177.75 : 2,169,343.69 = 2,169,343.69 : x
  2. Step 2: Convert to fraction form
    990,177.75/2,169,343.69 = 2,169,343.69/x
  3. Step 3: Cross multiply
    990,177.75x = 2,169,343.69 × 2,169,343.69
  4. Step 4: Simplify right side
    990,177.75x = 4,706,052,034,496.10
  5. Step 5: Solve for x
    x = 4,706,052,034,496.10/990,177.75
  6. Step 6: Final answer
    x = 4,752,734.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.