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Finding the Third Proportional to 10,661,640 and 15,194,988

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Solution

The third proportional to 10,661,640 and 15,194,988 is: 21,655,923.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661,640 : 15,194,988 = 15,194,988 : x
  2. Step 2: Convert to fraction form
    10,661,640/15,194,988 = 15,194,988/x
  3. Step 3: Cross multiply
    10,661,640x = 15,194,988 × 15,194,988
  4. Step 4: Simplify right side
    10,661,640x = 230,887,660,320,144
  5. Step 5: Solve for x
    x = 230,887,660,320,144/10,661,640
  6. Step 6: Final answer
    x = 21,655,923.51

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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.