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Finding the Third Proportional to 9,115,899 and 19,745,203.50

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Solution

The third proportional to 9,115,899 and 19,745,203.50 is: 42,768,470.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115,899 : 19,745,203.50 = 19,745,203.50 : x
  2. Step 2: Convert to fraction form
    9,115,899/19,745,203.50 = 19,745,203.50/x
  3. Step 3: Cross multiply
    9,115,899x = 19,745,203.50 × 19,745,203.50
  4. Step 4: Simplify right side
    9,115,899x = 389,873,061,256,412.25
  5. Step 5: Solve for x
    x = 389,873,061,256,412.25/9,115,899
  6. Step 6: Final answer
    x = 42,768,470.92

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.