Finding the Fourth Proportional to 5,491,905.80, 8,239,230.81 and 3,875,830.07
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Solution
The fourth proportional to 5,491,905.80, 8,239,230.81 and 3,875,830.07 is: 5,814,713.45
Step by Step Solution
- Step 1: Write the proportion equation
5,491,905.80 : 8,239,230.81 = 3,875,830.07 : x - Step 2: Convert to fraction form
5,491,905.80/8,239,230.81 = 3,875,830.07/x - Step 3: Cross multiply
5,491,905.80x = 8,239,230.81 × 3,875,830.07 - Step 4: Simplify right side
5,491,905.80x = 31,933,858,485,872.30 - Step 5: Solve for x
x = 31,933,858,485,872.30/5,491,905.80 - Step 6: Final answer
x = 5,814,713.45
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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.