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Finding the Third Proportional to 20,715,672 and 31,361,412

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Solution

The third proportional to 20,715,672 and 31,361,412 is: 47,477,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,715,672 : 31,361,412 = 31,361,412 : x
  2. Step 2: Convert to fraction form
    20,715,672/31,361,412 = 31,361,412/x
  3. Step 3: Cross multiply
    20,715,672x = 31,361,412 × 31,361,412
  4. Step 4: Simplify right side
    20,715,672x = 983,538,162,633,744
  5. Step 5: Solve for x
    x = 983,538,162,633,744/20,715,672
  6. Step 6: Final answer
    x = 47,477,975.26

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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.