Finding the Fourth Proportional to 22,378,910.38, 30,882,850.77 and 12,589,361.62
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Solution
The fourth proportional to 22,378,910.38, 30,882,850.77 and 12,589,361.62 is: 17,373,293.41
Step by Step Solution
- Step 1: Write the proportion equation
22,378,910.38 : 30,882,850.77 = 12,589,361.62 : x - Step 2: Convert to fraction form
22,378,910.38/30,882,850.77 = 12,589,361.62/x - Step 3: Cross multiply
22,378,910.38x = 30,882,850.77 × 12,589,361.62 - Step 4: Simplify right side
22,378,910.38x = 388,795,376,200,025.44 - Step 5: Solve for x
x = 388,795,376,200,025.44/22,378,910.38 - Step 6: Final answer
x = 17,373,293.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.