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Finding the Third Proportional to 1,809,311,238 and 3,939,006,285

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Solution

The third proportional to 1,809,311,238 and 3,939,006,285 is: 8,575,512,154.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809,311,238 : 3,939,006,285 = 3,939,006,285 : x
  2. Step 2: Convert to fraction form
    1,809,311,238/3,939,006,285 = 3,939,006,285/x
  3. Step 3: Cross multiply
    1,809,311,238x = 3,939,006,285 × 3,939,006,285
  4. Step 4: Simplify right side
    1,809,311,238x = 15,515,770,513,269,501,952
  5. Step 5: Solve for x
    x = 15,515,770,513,269,501,952/1,809,311,238
  6. Step 6: Final answer
    x = 8,575,512,154.79

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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.