Finding the Fourth Proportional to 18,331,825.80, 27,497,738.70 and 8,254,129.80
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Solution
The fourth proportional to 18,331,825.80, 27,497,738.70 and 8,254,129.80 is: 12,381,194.70
Step by Step Solution
- Step 1: Write the proportion equation
18,331,825.80 : 27,497,738.70 = 8,254,129.80 : x - Step 2: Convert to fraction form
18,331,825.80/27,497,738.70 = 8,254,129.80/x - Step 3: Cross multiply
18,331,825.80x = 27,497,738.70 × 8,254,129.80 - Step 4: Simplify right side
18,331,825.80x = 226,969,904,436,283.25 - Step 5: Solve for x
x = 226,969,904,436,283.25/18,331,825.80 - Step 6: Final answer
x = 12,381,194.70
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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.