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Finding the Third Proportional to 3,989,505 and 6,318,253

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Solution

The third proportional to 3,989,505 and 6,318,253 is: 10,006,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,505 : 6,318,253 = 6,318,253 : x
  2. Step 2: Convert to fraction form
    3,989,505/6,318,253 = 6,318,253/x
  3. Step 3: Cross multiply
    3,989,505x = 6,318,253 × 6,318,253
  4. Step 4: Simplify right side
    3,989,505x = 39,920,320,972,009
  5. Step 5: Solve for x
    x = 39,920,320,972,009/3,989,505
  6. Step 6: Final answer
    x = 10,006,334.36

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.