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Finding the Third Proportional to 8,472,072 and 18,561,414

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Solution

The third proportional to 8,472,072 and 18,561,414 is: 40,666,095.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472,072 : 18,561,414 = 18,561,414 : x
  2. Step 2: Convert to fraction form
    8,472,072/18,561,414 = 18,561,414/x
  3. Step 3: Cross multiply
    8,472,072x = 18,561,414 × 18,561,414
  4. Step 4: Simplify right side
    8,472,072x = 344,526,089,679,396
  5. Step 5: Solve for x
    x = 344,526,089,679,396/8,472,072
  6. Step 6: Final answer
    x = 40,666,095.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.