Finding the Fourth Proportional to 10,861,697.80, 16,292,546.70 and 7,082,561.80
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Solution
The fourth proportional to 10,861,697.80, 16,292,546.70 and 7,082,561.80 is: 10,623,842.70
Step by Step Solution
- Step 1: Write the proportion equation
10,861,697.80 : 16,292,546.70 = 7,082,561.80 : x - Step 2: Convert to fraction form
10,861,697.80/16,292,546.70 = 7,082,561.80/x - Step 3: Cross multiply
10,861,697.80x = 16,292,546.70 × 7,082,561.80 - Step 4: Simplify right side
10,861,697.80x = 115,392,968,882,136.05 - Step 5: Solve for x
x = 115,392,968,882,136.05/10,861,697.80 - Step 6: Final answer
x = 10,623,842.70
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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.