Finding the Fourth Proportional to 3,996,716.01, 5,515,331.62 and 2,278,390.11
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Solution
The fourth proportional to 3,996,716.01, 5,515,331.62 and 2,278,390.11 is: 3,144,100.55
Step by Step Solution
- Step 1: Write the proportion equation
3,996,716.01 : 5,515,331.62 = 2,278,390.11 : x - Step 2: Convert to fraction form
3,996,716.01/5,515,331.62 = 2,278,390.11/x - Step 3: Cross multiply
3,996,716.01x = 5,515,331.62 × 2,278,390.11 - Step 4: Simplify right side
3,996,716.01x = 12,566,077,016,378.28 - Step 5: Solve for x
x = 12,566,077,016,378.28/3,996,716.01 - Step 6: Final answer
x = 3,144,100.55
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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.