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Finding the Third Proportional to 3,189,890 and 4,738,755

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Solution

The third proportional to 3,189,890 and 4,738,755 is: 7,039,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189,890 : 4,738,755 = 4,738,755 : x
  2. Step 2: Convert to fraction form
    3,189,890/4,738,755 = 4,738,755/x
  3. Step 3: Cross multiply
    3,189,890x = 4,738,755 × 4,738,755
  4. Step 4: Simplify right side
    3,189,890x = 22,455,798,950,025
  5. Step 5: Solve for x
    x = 22,455,798,950,025/3,189,890
  6. Step 6: Final answer
    x = 7,039,678.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.