Finding the Fourth Proportional to 13,082,640.63, 18,054,216.79 and 7,202,959.48
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Solution
The fourth proportional to 13,082,640.63, 18,054,216.79 and 7,202,959.48 is: 9,940,179.17
Step by Step Solution
- Step 1: Write the proportion equation
13,082,640.63 : 18,054,216.79 = 7,202,959.48 : x - Step 2: Convert to fraction form
13,082,640.63/18,054,216.79 = 7,202,959.48/x - Step 3: Cross multiply
13,082,640.63x = 18,054,216.79 × 7,202,959.48 - Step 4: Simplify right side
13,082,640.63x = 130,043,791,904,765.80 - Step 5: Solve for x
x = 130,043,791,904,765.80/13,082,640.63 - Step 6: Final answer
x = 9,940,179.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.