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Finding the Third Proportional to 4,985,454 and 8,139,993

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Solution

The third proportional to 4,985,454 and 8,139,993 is: 13,290,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985,454 : 8,139,993 = 8,139,993 : x
  2. Step 2: Convert to fraction form
    4,985,454/8,139,993 = 8,139,993/x
  3. Step 3: Cross multiply
    4,985,454x = 8,139,993 × 8,139,993
  4. Step 4: Simplify right side
    4,985,454x = 66,259,486,040,049
  5. Step 5: Solve for x
    x = 66,259,486,040,049/4,985,454
  6. Step 6: Final answer
    x = 13,290,562.11

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.