Finding the Fourth Proportional to 4,006,389.11, 5,528,821.80 and 2,170,845.95
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Solution
The fourth proportional to 4,006,389.11, 5,528,821.80 and 2,170,845.95 is: 2,995,770.02
Step by Step Solution
- Step 1: Write the proportion equation
4,006,389.11 : 5,528,821.80 = 2,170,845.95 : x - Step 2: Convert to fraction form
4,006,389.11/5,528,821.80 = 2,170,845.95/x - Step 3: Cross multiply
4,006,389.11x = 5,528,821.80 × 2,170,845.95 - Step 4: Simplify right side
4,006,389.11x = 12,002,220,385,157.60 - Step 5: Solve for x
x = 12,002,220,385,157.60/4,006,389.11 - Step 6: Final answer
x = 2,995,770.02
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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.