Finding the Fourth Proportional to 3,119,198.80, 4,678,452.60 and 2,557,253.20
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Solution
The fourth proportional to 3,119,198.80, 4,678,452.60 and 2,557,253.20 is: 3,835,596.46
Step by Step Solution
- Step 1: Write the proportion equation
3,119,198.80 : 4,678,452.60 = 2,557,253.20 : x - Step 2: Convert to fraction form
3,119,198.80/4,678,452.60 = 2,557,253.20/x - Step 3: Cross multiply
3,119,198.80x = 4,678,452.60 × 2,557,253.20 - Step 4: Simplify right side
3,119,198.80x = 11,963,987,882,398.32 - Step 5: Solve for x
x = 11,963,987,882,398.32/3,119,198.80 - Step 6: Final answer
x = 3,835,596.46
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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.