Finding the Fourth Proportional to 18,031,247.88, 27,036,753.28 and 7,789,716.44
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Solution
The fourth proportional to 18,031,247.88, 27,036,753.28 and 7,789,716.44 is: 11,680,203.33
Step by Step Solution
- Step 1: Write the proportion equation
18,031,247.88 : 27,036,753.28 = 7,789,716.44 : x - Step 2: Convert to fraction form
18,031,247.88/27,036,753.28 = 7,789,716.44/x - Step 3: Cross multiply
18,031,247.88x = 27,036,753.28 × 7,789,716.44 - Step 4: Simplify right side
18,031,247.88x = 210,608,641,509,439.94 - Step 5: Solve for x
x = 210,608,641,509,439.94/18,031,247.88 - Step 6: Final answer
x = 11,680,203.33
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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.