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Finding the Third Proportional to 18,315,396 and 36,169,824

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Solution

The third proportional to 18,315,396 and 36,169,824 is: 71,429,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315,396 : 36,169,824 = 36,169,824 : x
  2. Step 2: Convert to fraction form
    18,315,396/36,169,824 = 36,169,824/x
  3. Step 3: Cross multiply
    18,315,396x = 36,169,824 × 36,169,824
  4. Step 4: Simplify right side
    18,315,396x = 1,308,256,168,190,976
  5. Step 5: Solve for x
    x = 1,308,256,168,190,976/18,315,396
  6. Step 6: Final answer
    x = 71,429,313.80

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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.