Finding the Fourth Proportional to 5,453,175.31, 8,181,631.49 and 1,861,464.53
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Solution
The fourth proportional to 5,453,175.31, 8,181,631.49 and 1,861,464.53 is: 2,792,834.62
Step by Step Solution
- Step 1: Write the proportion equation
5,453,175.31 : 8,181,631.49 = 1,861,464.53 : x - Step 2: Convert to fraction form
5,453,175.31/8,181,631.49 = 1,861,464.53/x - Step 3: Cross multiply
5,453,175.31x = 8,181,631.49 × 1,861,464.53 - Step 4: Simplify right side
5,453,175.31x = 15,229,816,786,526.50 - Step 5: Solve for x
x = 15,229,816,786,526.50/5,453,175.31 - Step 6: Final answer
x = 2,792,834.62
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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.