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Finding the Third Proportional to 9,099 and 19,990.13

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Solution

The third proportional to 9,099 and 19,990.13 is: 43,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,099 : 19,990.13 = 19,990.13 : x
  2. Step 2: Convert to fraction form
    9,099/19,990.13 = 19,990.13/x
  3. Step 3: Cross multiply
    9,099x = 19,990.13 × 19,990.13
  4. Step 4: Simplify right side
    9,099x = 399,605,097.52
  5. Step 5: Solve for x
    x = 399,605,097.52/9,099
  6. Step 6: Final answer
    x = 43,917.47

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.