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Finding the Third Proportional to 3,989,762 and 6,318,662

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Solution

The third proportional to 3,989,762 and 6,318,662 is: 10,006,985.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,762 : 6,318,662 = 6,318,662 : x
  2. Step 2: Convert to fraction form
    3,989,762/6,318,662 = 6,318,662/x
  3. Step 3: Cross multiply
    3,989,762x = 6,318,662 × 6,318,662
  4. Step 4: Simplify right side
    3,989,762x = 39,925,489,470,244
  5. Step 5: Solve for x
    x = 39,925,489,470,244/3,989,762
  6. Step 6: Final answer
    x = 10,006,985.25

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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.