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Finding the Third Proportional to 20,140,578 and 30,378,051

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Solution

The third proportional to 20,140,578 and 30,378,051 is: 45,819,240.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140,578 : 30,378,051 = 30,378,051 : x
  2. Step 2: Convert to fraction form
    20,140,578/30,378,051 = 30,378,051/x
  3. Step 3: Cross multiply
    20,140,578x = 30,378,051 × 30,378,051
  4. Step 4: Simplify right side
    20,140,578x = 922,825,982,558,601
  5. Step 5: Solve for x
    x = 922,825,982,558,601/20,140,578
  6. Step 6: Final answer
    x = 45,819,240.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.