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Finding the Third Proportional to 5,221,740 and 7,605,378

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Solution

The third proportional to 5,221,740 and 7,605,378 is: 11,077,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221,740 : 7,605,378 = 7,605,378 : x
  2. Step 2: Convert to fraction form
    5,221,740/7,605,378 = 7,605,378/x
  3. Step 3: Cross multiply
    5,221,740x = 7,605,378 × 7,605,378
  4. Step 4: Simplify right side
    5,221,740x = 57,841,774,522,884
  5. Step 5: Solve for x
    x = 57,841,774,522,884/5,221,740
  6. Step 6: Final answer
    x = 11,077,107.35

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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.