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Finding the Third Proportional to 331,310,656 and 720,798,420

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Solution

The third proportional to 331,310,656 and 720,798,420 is: 1,568,166,772.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,310,656 : 720,798,420 = 720,798,420 : x
  2. Step 2: Convert to fraction form
    331,310,656/720,798,420 = 720,798,420/x
  3. Step 3: Cross multiply
    331,310,656x = 720,798,420 × 720,798,420
  4. Step 4: Simplify right side
    331,310,656x = 519,550,362,274,496,384
  5. Step 5: Solve for x
    x = 519,550,362,274,496,384/331,310,656
  6. Step 6: Final answer
    x = 1,568,166,772.98

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.