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Finding the Third Proportional to 18,788,928 and 28,789,920

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Solution

The third proportional to 18,788,928 and 28,789,920 is: 44,114,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788,928 : 28,789,920 = 28,789,920 : x
  2. Step 2: Convert to fraction form
    18,788,928/28,789,920 = 28,789,920/x
  3. Step 3: Cross multiply
    18,788,928x = 28,789,920 × 28,789,920
  4. Step 4: Simplify right side
    18,788,928x = 828,859,493,606,400
  5. Step 5: Solve for x
    x = 828,859,493,606,400/18,788,928
  6. Step 6: Final answer
    x = 44,114,251.41

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.