Finding the Fourth Proportional to 12,253,727.99, 18,382,586.79 and 3,618,701.88
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Solution
The fourth proportional to 12,253,727.99, 18,382,586.79 and 3,618,701.88 is: 5,428,641.91
Step by Step Solution
- Step 1: Write the proportion equation
12,253,727.99 : 18,382,586.79 = 3,618,701.88 : x - Step 2: Convert to fraction form
12,253,727.99/18,382,586.79 = 3,618,701.88/x - Step 3: Cross multiply
12,253,727.99x = 18,382,586.79 × 3,618,701.88 - Step 4: Simplify right side
12,253,727.99x = 66,521,101,367,189.41 - Step 5: Solve for x
x = 66,521,101,367,189.41/12,253,727.99 - Step 6: Final answer
x = 5,428,641.91
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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.