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Finding the Third Proportional to 100,214,691 and 209,592,357.75

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Solution

The third proportional to 100,214,691 and 209,592,357.75 is: 438,348,469.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,214,691 : 209,592,357.75 = 209,592,357.75 : x
  2. Step 2: Convert to fraction form
    100,214,691/209,592,357.75 = 209,592,357.75/x
  3. Step 3: Cross multiply
    100,214,691x = 209,592,357.75 × 209,592,357.75
  4. Step 4: Simplify right side
    100,214,691x = 43,928,956,427,203,984
  5. Step 5: Solve for x
    x = 43,928,956,427,203,984/100,214,691
  6. Step 6: Final answer
    x = 438,348,469.56

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.