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Finding the Third Proportional to 18,578,328.75 and 38,850,625.50

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Solution

The third proportional to 18,578,328.75 and 38,850,625.50 is: 81,243,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578,328.75 : 38,850,625.50 = 38,850,625.50 : x
  2. Step 2: Convert to fraction form
    18,578,328.75/38,850,625.50 = 38,850,625.50/x
  3. Step 3: Cross multiply
    18,578,328.75x = 38,850,625.50 × 38,850,625.50
  4. Step 4: Simplify right side
    18,578,328.75x = 1,509,371,101,741,250.25
  5. Step 5: Solve for x
    x = 1,509,371,101,741,250.25/18,578,328.75
  6. Step 6: Final answer
    x = 81,243,642.64

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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.