Finding the Fourth Proportional to 11,752,990.40, 17,629,485.60 and 3,775,620.80
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Solution
The fourth proportional to 11,752,990.40, 17,629,485.60 and 3,775,620.80 is: 5,663,431.20
Step by Step Solution
- Step 1: Write the proportion equation
11,752,990.40 : 17,629,485.60 = 3,775,620.80 : x - Step 2: Convert to fraction form
11,752,990.40/17,629,485.60 = 3,775,620.80/x - Step 3: Cross multiply
11,752,990.40x = 17,629,485.60 × 3,775,620.80 - Step 4: Simplify right side
11,752,990.40x = 66,562,252,524,660.48 - Step 5: Solve for x
x = 66,562,252,524,660.48/11,752,990.40 - Step 6: Final answer
x = 5,663,431.20
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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.