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Finding the Third Proportional to 69,104,978 and 151,187,908

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Solution

The third proportional to 69,104,978 and 151,187,908 is: 330,768,986.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,104,978 : 151,187,908 = 151,187,908 : x
  2. Step 2: Convert to fraction form
    69,104,978/151,187,908 = 151,187,908/x
  3. Step 3: Cross multiply
    69,104,978x = 151,187,908 × 151,187,908
  4. Step 4: Simplify right side
    69,104,978x = 22,857,783,525,416,464
  5. Step 5: Solve for x
    x = 22,857,783,525,416,464/69,104,978
  6. Step 6: Final answer
    x = 330,768,986.36

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