Finding the Fourth Proportional to 18,381,121.04, 27,571,716.12 and 7,586,581.52
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Solution
The fourth proportional to 18,381,121.04, 27,571,716.12 and 7,586,581.52 is: 11,379,886.54
Step by Step Solution
- Step 1: Write the proportion equation
18,381,121.04 : 27,571,716.12 = 7,586,581.52 : x - Step 2: Convert to fraction form
18,381,121.04/27,571,716.12 = 7,586,581.52/x - Step 3: Cross multiply
18,381,121.04x = 27,571,716.12 × 7,586,581.52 - Step 4: Simplify right side
18,381,121.04x = 209,175,071,990,678.09 - Step 5: Solve for x
x = 209,175,071,990,678.09/18,381,121.04 - Step 6: Final answer
x = 11,379,886.54
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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.