Finding the Fourth Proportional to 18,677,170.42, 27,958,295.02 and 12,186,269.24
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Solution
The fourth proportional to 18,677,170.42, 27,958,295.02 and 12,186,269.24 is: 18,241,912.60
Step by Step Solution
- Step 1: Write the proportion equation
18,677,170.42 : 27,958,295.02 = 12,186,269.24 : x - Step 2: Convert to fraction form
18,677,170.42/27,958,295.02 = 12,186,269.24/x - Step 3: Cross multiply
18,677,170.42x = 27,958,295.02 × 12,186,269.24 - Step 4: Simplify right side
18,677,170.42x = 340,707,310,434,814 - Step 5: Solve for x
x = 340,707,310,434,814/18,677,170.42 - Step 6: Final answer
x = 18,241,912.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.