Finding the Fourth Proportional to 3,996,586.08, 5,515,284.86 and 2,161,039.98
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Solution
The fourth proportional to 3,996,586.08, 5,515,284.86 and 2,161,039.98 is: 2,982,233.05
Step by Step Solution
- Step 1: Write the proportion equation
3,996,586.08 : 5,515,284.86 = 2,161,039.98 : x - Step 2: Convert to fraction form
3,996,586.08/5,515,284.86 = 2,161,039.98/x - Step 3: Cross multiply
3,996,586.08x = 5,515,284.86 × 2,161,039.98 - Step 4: Simplify right side
3,996,586.08x = 11,918,751,083,548.70 - Step 5: Solve for x
x = 11,918,751,083,548.70/3,996,586.08 - Step 6: Final answer
x = 2,982,233.05
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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.