Finding the Fourth Proportional to 4,818,138.88, 6,649,458.24 and 2,643,105.91
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Solution
The fourth proportional to 4,818,138.88, 6,649,458.24 and 2,643,105.91 is: 3,647,720.17
Step by Step Solution
- Step 1: Write the proportion equation
4,818,138.88 : 6,649,458.24 = 2,643,105.91 : x - Step 2: Convert to fraction form
4,818,138.88/6,649,458.24 = 2,643,105.91/x - Step 3: Cross multiply
4,818,138.88x = 6,649,458.24 × 2,643,105.91 - Step 4: Simplify right side
4,818,138.88x = 17,575,222,372,442.20 - Step 5: Solve for x
x = 17,575,222,372,442.20/4,818,138.88 - Step 6: Final answer
x = 3,647,720.17
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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.