Finding the Fourth Proportional to 5,538,678.34, 8,311,728.57 and 1,944,455.92
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Solution
The fourth proportional to 5,538,678.34, 8,311,728.57 and 1,944,455.92 is: 2,917,986.72
Step by Step Solution
- Step 1: Write the proportion equation
5,538,678.34 : 8,311,728.57 = 1,944,455.92 : x - Step 2: Convert to fraction form
5,538,678.34/8,311,728.57 = 1,944,455.92/x - Step 3: Cross multiply
5,538,678.34x = 8,311,728.57 × 1,944,455.92 - Step 4: Simplify right side
5,538,678.34x = 16,161,789,823,369.63 - Step 5: Solve for x
x = 16,161,789,823,369.63/5,538,678.34 - Step 6: Final answer
x = 2,917,986.72
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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.