Finding the Fourth Proportional to 12,311,578.68, 16,990,046.26 and 6,729,833.65
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Solution
The fourth proportional to 12,311,578.68, 16,990,046.26 and 6,729,833.65 is: 9,287,207.43
Step by Step Solution
- Step 1: Write the proportion equation
12,311,578.68 : 16,990,046.26 = 6,729,833.65 : x - Step 2: Convert to fraction form
12,311,578.68/16,990,046.26 = 6,729,833.65/x - Step 3: Cross multiply
12,311,578.68x = 16,990,046.26 × 6,729,833.65 - Step 4: Simplify right side
12,311,578.68x = 114,340,184,998,232.08 - Step 5: Solve for x
x = 114,340,184,998,232.08/12,311,578.68 - Step 6: Final answer
x = 9,287,207.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.