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Finding the Third Proportional to 627,783,657 and 979,821,138

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Solution

The third proportional to 627,783,657 and 979,821,138 is: 1,529,268,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,783,657 : 979,821,138 = 979,821,138 : x
  2. Step 2: Convert to fraction form
    627,783,657/979,821,138 = 979,821,138/x
  3. Step 3: Cross multiply
    627,783,657x = 979,821,138 × 979,821,138
  4. Step 4: Simplify right side
    627,783,657x = 960,049,462,471,615,104
  5. Step 5: Solve for x
    x = 960,049,462,471,615,104/627,783,657
  6. Step 6: Final answer
    x = 1,529,268,007.80

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.