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Finding the Third Proportional to 20,239,819 and 31,305,565

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Solution

The third proportional to 20,239,819 and 31,305,565 is: 48,421,302.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239,819 : 31,305,565 = 31,305,565 : x
  2. Step 2: Convert to fraction form
    20,239,819/31,305,565 = 31,305,565/x
  3. Step 3: Cross multiply
    20,239,819x = 31,305,565 × 31,305,565
  4. Step 4: Simplify right side
    20,239,819x = 980,038,399,969,225
  5. Step 5: Solve for x
    x = 980,038,399,969,225/20,239,819
  6. Step 6: Final answer
    x = 48,421,302.58

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.