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Finding the Third Proportional to 18,586,992 and 39,389,232

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Solution

The third proportional to 18,586,992 and 39,389,232 is: 83,472,979.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586,992 : 39,389,232 = 39,389,232 : x
  2. Step 2: Convert to fraction form
    18,586,992/39,389,232 = 39,389,232/x
  3. Step 3: Cross multiply
    18,586,992x = 39,389,232 × 39,389,232
  4. Step 4: Simplify right side
    18,586,992x = 1,551,511,597,549,824
  5. Step 5: Solve for x
    x = 1,551,511,597,549,824/18,586,992
  6. Step 6: Final answer
    x = 83,472,979.25

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.