Finding the Fourth Proportional to 12,083,733.20, 18,135,514.20 and 11,989,254.80
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Solution
The fourth proportional to 12,083,733.20, 18,135,514.20 and 11,989,254.80 is: 17,993,719.08
Step by Step Solution
- Step 1: Write the proportion equation
12,083,733.20 : 18,135,514.20 = 11,989,254.80 : x - Step 2: Convert to fraction form
12,083,733.20/18,135,514.20 = 11,989,254.80/x - Step 3: Cross multiply
12,083,733.20x = 18,135,514.20 × 11,989,254.80 - Step 4: Simplify right side
12,083,733.20x = 217,431,300,672,818.16 - Step 5: Solve for x
x = 217,431,300,672,818.16/12,083,733.20 - Step 6: Final answer
x = 17,993,719.08
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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.