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Finding the Third Proportional to 393,550,724.25 and 861,237,778.50

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Solution

The third proportional to 393,550,724.25 and 861,237,778.50 is: 1,884,713,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,550,724.25 : 861,237,778.50 = 861,237,778.50 : x
  2. Step 2: Convert to fraction form
    393,550,724.25/861,237,778.50 = 861,237,778.50/x
  3. Step 3: Cross multiply
    393,550,724.25x = 861,237,778.50 × 861,237,778.50
  4. Step 4: Simplify right side
    393,550,724.25x = 741,730,511,115,615,104
  5. Step 5: Solve for x
    x = 741,730,511,115,615,104/393,550,724.25
  6. Step 6: Final answer
    x = 1,884,713,876.54

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.