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Finding the Third Proportional to 7,917,745.50 and 12,240,218.25

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Solution

The third proportional to 7,917,745.50 and 12,240,218.25 is: 18,922,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917,745.50 : 12,240,218.25 = 12,240,218.25 : x
  2. Step 2: Convert to fraction form
    7,917,745.50/12,240,218.25 = 12,240,218.25/x
  3. Step 3: Cross multiply
    7,917,745.50x = 12,240,218.25 × 12,240,218.25
  4. Step 4: Simplify right side
    7,917,745.50x = 149,822,942,807,633.06
  5. Step 5: Solve for x
    x = 149,822,942,807,633.06/7,917,745.50
  6. Step 6: Final answer
    x = 18,922,424.67

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.