Finding the Fourth Proportional to 4,857,816.24, 7,289,245.80 and 1,981,293.12
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Solution
The fourth proportional to 4,857,816.24, 7,289,245.80 and 1,981,293.12 is: 2,972,968.07
Step by Step Solution
- Step 1: Write the proportion equation
4,857,816.24 : 7,289,245.80 = 1,981,293.12 : x - Step 2: Convert to fraction form
4,857,816.24/7,289,245.80 = 1,981,293.12/x - Step 3: Cross multiply
4,857,816.24x = 7,289,245.80 × 1,981,293.12 - Step 4: Simplify right side
4,857,816.24x = 14,442,132,553,528.90 - Step 5: Solve for x
x = 14,442,132,553,528.90/4,857,816.24 - Step 6: Final answer
x = 2,972,968.07
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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.