Finding the Fourth Proportional to 3,861,089.42, 5,328,304.06 and 2,142,205.84
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Solution
The fourth proportional to 3,861,089.42, 5,328,304.06 and 2,142,205.84 is: 2,956,244.42
Step by Step Solution
- Step 1: Write the proportion equation
3,861,089.42 : 5,328,304.06 = 2,142,205.84 : x - Step 2: Convert to fraction form
3,861,089.42/5,328,304.06 = 2,142,205.84/x - Step 3: Cross multiply
3,861,089.42x = 5,328,304.06 × 2,142,205.84 - Step 4: Simplify right side
3,861,089.42x = 11,414,324,043,952.76 - Step 5: Solve for x
x = 11,414,324,043,952.76/3,861,089.42 - Step 6: Final answer
x = 2,956,244.42
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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.