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Finding the Third Proportional to 149,444,469 and 328,309,920

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Solution

The third proportional to 149,444,469 and 328,309,920 is: 721,253,883.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,444,469 : 328,309,920 = 328,309,920 : x
  2. Step 2: Convert to fraction form
    149,444,469/328,309,920 = 328,309,920/x
  3. Step 3: Cross multiply
    149,444,469x = 328,309,920 × 328,309,920
  4. Step 4: Simplify right side
    149,444,469x = 107,787,403,570,406,400
  5. Step 5: Solve for x
    x = 107,787,403,570,406,400/149,444,469
  6. Step 6: Final answer
    x = 721,253,883.08

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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.