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Finding the Third Proportional to 18,967,486.50 and 40,812,153.75

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Solution

The third proportional to 18,967,486.50 and 40,812,153.75 is: 87,815,108.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967,486.50 : 40,812,153.75 = 40,812,153.75 : x
  2. Step 2: Convert to fraction form
    18,967,486.50/40,812,153.75 = 40,812,153.75/x
  3. Step 3: Cross multiply
    18,967,486.50x = 40,812,153.75 × 40,812,153.75
  4. Step 4: Simplify right side
    18,967,486.50x = 1,665,631,893,713,639
  5. Step 5: Solve for x
    x = 1,665,631,893,713,639/18,967,486.50
  6. Step 6: Final answer
    x = 87,815,108.96

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.