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Finding the Third Proportional to 18,578,310 and 38,850,586

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Solution

The third proportional to 18,578,310 and 38,850,586 is: 81,243,559.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578,310 : 38,850,586 = 38,850,586 : x
  2. Step 2: Convert to fraction form
    18,578,310/38,850,586 = 38,850,586/x
  3. Step 3: Cross multiply
    18,578,310x = 38,850,586 × 38,850,586
  4. Step 4: Simplify right side
    18,578,310x = 1,509,368,032,543,396
  5. Step 5: Solve for x
    x = 1,509,368,032,543,396/18,578,310
  6. Step 6: Final answer
    x = 81,243,559.43

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.