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Finding the Third Proportional to 20,334,405 and 30,978,080

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Solution

The third proportional to 20,334,405 and 30,978,080 is: 47,192,993.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,405 : 30,978,080 = 30,978,080 : x
  2. Step 2: Convert to fraction form
    20,334,405/30,978,080 = 30,978,080/x
  3. Step 3: Cross multiply
    20,334,405x = 30,978,080 × 30,978,080
  4. Step 4: Simplify right side
    20,334,405x = 959,641,440,486,400
  5. Step 5: Solve for x
    x = 959,641,440,486,400/20,334,405
  6. Step 6: Final answer
    x = 47,192,993.38

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.