Finding the Fourth Proportional to 3,992,068.57, 5,509,049.21 and 2,273,189.08
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Solution
The fourth proportional to 3,992,068.57, 5,509,049.21 and 2,273,189.08 is: 3,136,997.85
Step by Step Solution
- Step 1: Write the proportion equation
3,992,068.57 : 5,509,049.21 = 2,273,189.08 : x - Step 2: Convert to fraction form
3,992,068.57/5,509,049.21 = 2,273,189.08/x - Step 3: Cross multiply
3,992,068.57x = 5,509,049.21 × 2,273,189.08 - Step 4: Simplify right side
3,992,068.57x = 12,523,110,493,988.68 - Step 5: Solve for x
x = 12,523,110,493,988.68/3,992,068.57 - Step 6: Final answer
x = 3,136,997.85
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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.