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Finding the Third Proportional to 13,997,178 and 20,015,988

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Solution

The third proportional to 13,997,178 and 20,015,988 is: 28,622,896.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997,178 : 20,015,988 = 20,015,988 : x
  2. Step 2: Convert to fraction form
    13,997,178/20,015,988 = 20,015,988/x
  3. Step 3: Cross multiply
    13,997,178x = 20,015,988 × 20,015,988
  4. Step 4: Simplify right side
    13,997,178x = 400,639,775,616,144
  5. Step 5: Solve for x
    x = 400,639,775,616,144/13,997,178
  6. Step 6: Final answer
    x = 28,622,896.39

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.