Finding the Fourth Proportional to 3,621,939.80, 5,432,909.70 and 2,187,049.10
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Solution
The fourth proportional to 3,621,939.80, 5,432,909.70 and 2,187,049.10 is: 3,280,573.65
Step by Step Solution
- Step 1: Write the proportion equation
3,621,939.80 : 5,432,909.70 = 2,187,049.10 : x - Step 2: Convert to fraction form
3,621,939.80/5,432,909.70 = 2,187,049.10/x - Step 3: Cross multiply
3,621,939.80x = 5,432,909.70 × 2,187,049.10 - Step 4: Simplify right side
3,621,939.80x = 11,882,040,269,766.27 - Step 5: Solve for x
x = 11,882,040,269,766.27/3,621,939.80 - Step 6: Final answer
x = 3,280,573.65
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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.