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Finding the Third Proportional to 18,315,400 and 36,169,832

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Solution

The third proportional to 18,315,400 and 36,169,832 is: 71,429,329.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315,400 : 36,169,832 = 36,169,832 : x
  2. Step 2: Convert to fraction form
    18,315,400/36,169,832 = 36,169,832/x
  3. Step 3: Cross multiply
    18,315,400x = 36,169,832 × 36,169,832
  4. Step 4: Simplify right side
    18,315,400x = 1,308,256,746,908,224
  5. Step 5: Solve for x
    x = 1,308,256,746,908,224/18,315,400
  6. Step 6: Final answer
    x = 71,429,329.79

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.