Finding the Fourth Proportional to 3,996,721.26, 5,515,338.87 and 2,278,395.36
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Solution
The fourth proportional to 3,996,721.26, 5,515,338.87 and 2,278,395.36 is: 3,144,107.80
Step by Step Solution
- Step 1: Write the proportion equation
3,996,721.26 : 5,515,338.87 = 2,278,395.36 : x - Step 2: Convert to fraction form
3,996,721.26/5,515,338.87 = 2,278,395.36/x - Step 3: Cross multiply
3,996,721.26x = 5,515,338.87 × 2,278,395.36 - Step 4: Simplify right side
3,996,721.26x = 12,566,122,490,235.64 - Step 5: Solve for x
x = 12,566,122,490,235.64/3,996,721.26 - Step 6: Final answer
x = 3,144,107.80
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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.