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Finding the Third Proportional to 15,238,144 and 20,695,040

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Solution

The third proportional to 15,238,144 and 20,695,040 is: 28,106,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238,144 : 20,695,040 = 20,695,040 : x
  2. Step 2: Convert to fraction form
    15,238,144/20,695,040 = 20,695,040/x
  3. Step 3: Cross multiply
    15,238,144x = 20,695,040 × 20,695,040
  4. Step 4: Simplify right side
    15,238,144x = 428,284,680,601,600
  5. Step 5: Solve for x
    x = 428,284,680,601,600/15,238,144
  6. Step 6: Final answer
    x = 28,106,092.22

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.