Finding the Fourth Proportional to 3,538,719.90, 4,873,326.36 and 3,186,864.42
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Solution
The fourth proportional to 3,538,719.90, 4,873,326.36 and 3,186,864.42 is: 4,388,770.75
Step by Step Solution
- Step 1: Write the proportion equation
3,538,719.90 : 4,873,326.36 = 3,186,864.42 : x - Step 2: Convert to fraction form
3,538,719.90/4,873,326.36 = 3,186,864.42/x - Step 3: Cross multiply
3,538,719.90x = 4,873,326.36 × 3,186,864.42 - Step 4: Simplify right side
3,538,719.90x = 15,530,630,383,732.11 - Step 5: Solve for x
x = 15,530,630,383,732.11/3,538,719.90 - Step 6: Final answer
x = 4,388,770.75
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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.