Finding the Fourth Proportional to 12,381,049.67, 18,561,806.99 and 7,822,489.94
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Solution
The fourth proportional to 12,381,049.67, 18,561,806.99 and 7,822,489.94 is: 11,727,563.68
Step by Step Solution
- Step 1: Write the proportion equation
12,381,049.67 : 18,561,806.99 = 7,822,489.94 : x - Step 2: Convert to fraction form
12,381,049.67/18,561,806.99 = 7,822,489.94/x - Step 3: Cross multiply
12,381,049.67x = 18,561,806.99 × 7,822,489.94 - Step 4: Simplify right side
12,381,049.67x = 145,199,548,477,719.81 - Step 5: Solve for x
x = 145,199,548,477,719.81/12,381,049.67 - Step 6: Final answer
x = 11,727,563.68
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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.