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Finding the Third Proportional to 3,715,885 and 5,430,447

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Solution

The third proportional to 3,715,885 and 5,430,447 is: 7,936,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715,885 : 5,430,447 = 5,430,447 : x
  2. Step 2: Convert to fraction form
    3,715,885/5,430,447 = 5,430,447/x
  3. Step 3: Cross multiply
    3,715,885x = 5,430,447 × 5,430,447
  4. Step 4: Simplify right side
    3,715,885x = 29,489,754,619,809
  5. Step 5: Solve for x
    x = 29,489,754,619,809/3,715,885
  6. Step 6: Final answer
    x = 7,936,132.21

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.