Finding the Fourth Proportional to 5,521,877.20, 8,283,993.40 and 3,126,843.60
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Solution
The fourth proportional to 5,521,877.20, 8,283,993.40 and 3,126,843.60 is: 4,690,932.23
Step by Step Solution
- Step 1: Write the proportion equation
5,521,877.20 : 8,283,993.40 = 3,126,843.60 : x - Step 2: Convert to fraction form
5,521,877.20/8,283,993.40 = 3,126,843.60/x - Step 3: Cross multiply
5,521,877.20x = 8,283,993.40 × 3,126,843.60 - Step 4: Simplify right side
5,521,877.20x = 25,902,751,745,232.24 - Step 5: Solve for x
x = 25,902,751,745,232.24/5,521,877.20 - Step 6: Final answer
x = 4,690,932.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.