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Finding the Third Proportional to 155,708,110 and 218,993,039

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Solution

The third proportional to 155,708,110 and 218,993,039 is: 307,999,057.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,708,110 : 218,993,039 = 218,993,039 : x
  2. Step 2: Convert to fraction form
    155,708,110/218,993,039 = 218,993,039/x
  3. Step 3: Cross multiply
    155,708,110x = 218,993,039 × 218,993,039
  4. Step 4: Simplify right side
    155,708,110x = 47,957,951,130,455,520
  5. Step 5: Solve for x
    x = 47,957,951,130,455,520/155,708,110
  6. Step 6: Final answer
    x = 307,999,057.53

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.