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Finding the Third Proportional to 308,287,458.50 and 445,422,122

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Solution

The third proportional to 308,287,458.50 and 445,422,122 is: 643,558,021.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,287,458.50 : 445,422,122 = 445,422,122 : x
  2. Step 2: Convert to fraction form
    308,287,458.50/445,422,122 = 445,422,122/x
  3. Step 3: Cross multiply
    308,287,458.50x = 445,422,122 × 445,422,122
  4. Step 4: Simplify right side
    308,287,458.50x = 198,400,866,766,982,880
  5. Step 5: Solve for x
    x = 198,400,866,766,982,880/308,287,458.50
  6. Step 6: Final answer
    x = 643,558,021.25

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.