Finding the Fourth Proportional to 3,889,727.12, 5,368,120.29 and 2,147,732.42
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Solution
The fourth proportional to 3,889,727.12, 5,368,120.29 and 2,147,732.42 is: 2,964,034.65
Step by Step Solution
- Step 1: Write the proportion equation
3,889,727.12 : 5,368,120.29 = 2,147,732.42 : x - Step 2: Convert to fraction form
3,889,727.12/5,368,120.29 = 2,147,732.42/x - Step 3: Cross multiply
3,889,727.12x = 5,368,120.29 × 2,147,732.42 - Step 4: Simplify right side
3,889,727.12x = 11,529,285,954,452.20 - Step 5: Solve for x
x = 11,529,285,954,452.20/3,889,727.12 - Step 6: Final answer
x = 2,964,034.65
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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.