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Finding the Third Proportional to 5,418,622 and 7,430,413

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Solution

The third proportional to 5,418,622 and 7,430,413 is: 10,189,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418,622 : 7,430,413 = 7,430,413 : x
  2. Step 2: Convert to fraction form
    5,418,622/7,430,413 = 7,430,413/x
  3. Step 3: Cross multiply
    5,418,622x = 7,430,413 × 7,430,413
  4. Step 4: Simplify right side
    5,418,622x = 55,211,037,350,569
  5. Step 5: Solve for x
    x = 55,211,037,350,569/5,418,622
  6. Step 6: Final answer
    x = 10,189,128.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.