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Finding the Third Proportional to 3,986,836 and 8,540,136

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Solution

The third proportional to 3,986,836 and 8,540,136 is: 18,293,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,836 : 8,540,136 = 8,540,136 : x
  2. Step 2: Convert to fraction form
    3,986,836/8,540,136 = 8,540,136/x
  3. Step 3: Cross multiply
    3,986,836x = 8,540,136 × 8,540,136
  4. Step 4: Simplify right side
    3,986,836x = 72,933,922,898,496
  5. Step 5: Solve for x
    x = 72,933,922,898,496/3,986,836
  6. Step 6: Final answer
    x = 18,293,685.24

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.