Finding the Fourth Proportional to 10,992,935.20, 16,492,858.80 and 5,313,344.80
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Solution
The fourth proportional to 10,992,935.20, 16,492,858.80 and 5,313,344.80 is: 7,971,687.63
Step by Step Solution
- Step 1: Write the proportion equation
10,992,935.20 : 16,492,858.80 = 5,313,344.80 : x - Step 2: Convert to fraction form
10,992,935.20/16,492,858.80 = 5,313,344.80/x - Step 3: Cross multiply
10,992,935.20x = 16,492,858.80 × 5,313,344.80 - Step 4: Simplify right side
10,992,935.20x = 87,632,245,542,114.23 - Step 5: Solve for x
x = 87,632,245,542,114.23/10,992,935.20 - Step 6: Final answer
x = 7,971,687.63
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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.