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Finding the Third Proportional to 515,627,112 and 817,816,608

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Solution

The third proportional to 515,627,112 and 817,816,608 is: 1,297,107,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,627,112 : 817,816,608 = 817,816,608 : x
  2. Step 2: Convert to fraction form
    515,627,112/817,816,608 = 817,816,608/x
  3. Step 3: Cross multiply
    515,627,112x = 817,816,608 × 817,816,608
  4. Step 4: Simplify right side
    515,627,112x = 668,824,004,320,625,664
  5. Step 5: Solve for x
    x = 668,824,004,320,625,664/515,627,112
  6. Step 6: Final answer
    x = 1,297,107,907.55

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.