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Finding the Third Proportional to 9,865,836 and 21,519,816

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Solution

The third proportional to 9,865,836 and 21,519,816 is: 46,940,014.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865,836 : 21,519,816 = 21,519,816 : x
  2. Step 2: Convert to fraction form
    9,865,836/21,519,816 = 21,519,816/x
  3. Step 3: Cross multiply
    9,865,836x = 21,519,816 × 21,519,816
  4. Step 4: Simplify right side
    9,865,836x = 463,102,480,673,856
  5. Step 5: Solve for x
    x = 463,102,480,673,856/9,865,836
  6. Step 6: Final answer
    x = 46,940,014.07

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.