Finding the Fourth Proportional to 7,990,541.28, 11,986,161.84 and 2,311,339.68
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Solution
The fourth proportional to 7,990,541.28, 11,986,161.84 and 2,311,339.68 is: 3,467,110.74
Step by Step Solution
- Step 1: Write the proportion equation
7,990,541.28 : 11,986,161.84 = 2,311,339.68 : x - Step 2: Convert to fraction form
7,990,541.28/11,986,161.84 = 2,311,339.68/x - Step 3: Cross multiply
7,990,541.28x = 11,986,161.84 × 2,311,339.68 - Step 4: Simplify right side
7,990,541.28x = 27,704,091,471,693.81 - Step 5: Solve for x
x = 27,704,091,471,693.81/7,990,541.28 - Step 6: Final answer
x = 3,467,110.74
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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.