Finding the Fourth Proportional to 18,288,165.20, 27,419,806.20 and 8,708,133.20
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Solution
The fourth proportional to 18,288,165.20, 27,419,806.20 and 8,708,133.20 is: 13,056,275.58
Step by Step Solution
- Step 1: Write the proportion equation
18,288,165.20 : 27,419,806.20 = 8,708,133.20 : x - Step 2: Convert to fraction form
18,288,165.20/27,419,806.20 = 8,708,133.20/x - Step 3: Cross multiply
18,288,165.20x = 27,419,806.20 × 8,708,133.20 - Step 4: Simplify right side
18,288,165.20x = 238,775,324,707,785.81 - Step 5: Solve for x
x = 238,775,324,707,785.81/18,288,165.20 - Step 6: Final answer
x = 13,056,275.58
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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.