Finding the Fourth Proportional to 3,997,121.78, 5,517,829.43 and 2,548,764.02
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Solution
The fourth proportional to 3,997,121.78, 5,517,829.43 and 2,548,764.02 is: 3,518,442.99
Step by Step Solution
- Step 1: Write the proportion equation
3,997,121.78 : 5,517,829.43 = 2,548,764.02 : x - Step 2: Convert to fraction form
3,997,121.78/5,517,829.43 = 2,548,764.02/x - Step 3: Cross multiply
3,997,121.78x = 5,517,829.43 × 2,548,764.02 - Step 4: Simplify right side
3,997,121.78x = 14,063,645,079,348.14 - Step 5: Solve for x
x = 14,063,645,079,348.14/3,997,121.78 - Step 6: Final answer
x = 3,518,442.99
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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.