Finding the Fourth Proportional to 3,855,231.58, 5,320,251.06 and 2,136,380.80
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Solution
The fourth proportional to 3,855,231.58, 5,320,251.06 and 2,136,380.80 is: 2,948,222.95
Step by Step Solution
- Step 1: Write the proportion equation
3,855,231.58 : 5,320,251.06 = 2,136,380.80 : x - Step 2: Convert to fraction form
3,855,231.58/5,320,251.06 = 2,136,380.80/x - Step 3: Cross multiply
3,855,231.58x = 5,320,251.06 × 2,136,380.80 - Step 4: Simplify right side
3,855,231.58x = 11,366,082,215,763.65 - Step 5: Solve for x
x = 11,366,082,215,763.65/3,855,231.58 - Step 6: Final answer
x = 2,948,222.95
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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.