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Finding the Third Proportional to 3,994,861 and 8,628,178

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Solution

The third proportional to 3,994,861 and 8,628,178 is: 18,635,305.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994,861 : 8,628,178 = 8,628,178 : x
  2. Step 2: Convert to fraction form
    3,994,861/8,628,178 = 8,628,178/x
  3. Step 3: Cross multiply
    3,994,861x = 8,628,178 × 8,628,178
  4. Step 4: Simplify right side
    3,994,861x = 74,445,455,599,684
  5. Step 5: Solve for x
    x = 74,445,455,599,684/3,994,861
  6. Step 6: Final answer
    x = 18,635,305.61

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.