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Finding the Third Proportional to 11,718,428 and 18,647,128.50

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Solution

The third proportional to 11,718,428 and 18,647,128.50 is: 29,672,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718,428 : 18,647,128.50 = 18,647,128.50 : x
  2. Step 2: Convert to fraction form
    11,718,428/18,647,128.50 = 18,647,128.50/x
  3. Step 3: Cross multiply
    11,718,428x = 18,647,128.50 × 18,647,128.50
  4. Step 4: Simplify right side
    11,718,428x = 347,715,401,295,512.25
  5. Step 5: Solve for x
    x = 347,715,401,295,512.25/11,718,428
  6. Step 6: Final answer
    x = 29,672,529.57

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.