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Finding the Third Proportional to 68,309,928 and 105,656,988

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Solution

The third proportional to 68,309,928 and 105,656,988 is: 163,422,791.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,309,928 : 105,656,988 = 105,656,988 : x
  2. Step 2: Convert to fraction form
    68,309,928/105,656,988 = 105,656,988/x
  3. Step 3: Cross multiply
    68,309,928x = 105,656,988 × 105,656,988
  4. Step 4: Simplify right side
    68,309,928x = 11,163,399,113,232,144
  5. Step 5: Solve for x
    x = 11,163,399,113,232,144/68,309,928
  6. Step 6: Final answer
    x = 163,422,791.39

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.