Finding the Fourth Proportional to 6,489,986.62, 8,958,939.20 and 4,043,806.26
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Solution
The fourth proportional to 6,489,986.62, 8,958,939.20 and 4,043,806.26 is: 5,582,170.90
Step by Step Solution
- Step 1: Write the proportion equation
6,489,986.62 : 8,958,939.20 = 4,043,806.26 : x - Step 2: Convert to fraction form
6,489,986.62/8,958,939.20 = 4,043,806.26/x - Step 3: Cross multiply
6,489,986.62x = 8,958,939.20 × 4,043,806.26 - Step 4: Simplify right side
6,489,986.62x = 36,228,214,419,919.39 - Step 5: Solve for x
x = 36,228,214,419,919.39/6,489,986.62 - Step 6: Final answer
x = 5,582,170.90
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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.