Finding the Fourth Proportional to 7,469,810.40, 11,204,715.60 and 2,421,631.20
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Solution
The fourth proportional to 7,469,810.40, 11,204,715.60 and 2,421,631.20 is: 3,632,446.80
Step by Step Solution
- Step 1: Write the proportion equation
7,469,810.40 : 11,204,715.60 = 2,421,631.20 : x - Step 2: Convert to fraction form
7,469,810.40/11,204,715.60 = 2,421,631.20/x - Step 3: Cross multiply
7,469,810.40x = 11,204,715.60 × 2,421,631.20 - Step 4: Simplify right side
7,469,810.40x = 27,133,688,884,086.72 - Step 5: Solve for x
x = 27,133,688,884,086.72/7,469,810.40 - Step 6: Final answer
x = 3,632,446.80
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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.