Finding the Fourth Proportional to 18,627,581.68, 27,941,380.08 and 8,380,474.72
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Solution
The fourth proportional to 18,627,581.68, 27,941,380.08 and 8,380,474.72 is: 12,570,715.48
Step by Step Solution
- Step 1: Write the proportion equation
18,627,581.68 : 27,941,380.08 = 8,380,474.72 : x - Step 2: Convert to fraction form
18,627,581.68/27,941,380.08 = 8,380,474.72/x - Step 3: Cross multiply
18,627,581.68x = 27,941,380.08 × 8,380,474.72 - Step 4: Simplify right side
18,627,581.68x = 234,162,029,402,351.56 - Step 5: Solve for x
x = 234,162,029,402,351.56/18,627,581.68 - Step 6: Final answer
x = 12,570,715.48
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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.