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Finding the Third Proportional to 9,778,950 and 21,240,769

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Solution

The third proportional to 9,778,950 and 21,240,769 is: 46,136,882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778,950 : 21,240,769 = 21,240,769 : x
  2. Step 2: Convert to fraction form
    9,778,950/21,240,769 = 21,240,769/x
  3. Step 3: Cross multiply
    9,778,950x = 21,240,769 × 21,240,769
  4. Step 4: Simplify right side
    9,778,950x = 451,170,267,711,361
  5. Step 5: Solve for x
    x = 451,170,267,711,361/9,778,950
  6. Step 6: Final answer
    x = 46,136,882.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.