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Finding the Third Proportional to 2,128,078 and 4,629,404

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Solution

The third proportional to 2,128,078 and 4,629,404 is: 10,070,768.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,078 : 4,629,404 = 4,629,404 : x
  2. Step 2: Convert to fraction form
    2,128,078/4,629,404 = 4,629,404/x
  3. Step 3: Cross multiply
    2,128,078x = 4,629,404 × 4,629,404
  4. Step 4: Simplify right side
    2,128,078x = 21,431,381,395,216
  5. Step 5: Solve for x
    x = 21,431,381,395,216/2,128,078
  6. Step 6: Final answer
    x = 10,070,768.74

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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.