Finding the Fourth Proportional to 3,999,821.62, 5,519,712.42 and 2,164,239.41
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Solution
The fourth proportional to 3,999,821.62, 5,519,712.42 and 2,164,239.41 is: 2,986,627.97
Step by Step Solution
- Step 1: Write the proportion equation
3,999,821.62 : 5,519,712.42 = 2,164,239.41 : x - Step 2: Convert to fraction form
3,999,821.62/5,519,712.42 = 2,164,239.41/x - Step 3: Cross multiply
3,999,821.62x = 5,519,712.42 × 2,164,239.41 - Step 4: Simplify right side
3,999,821.62x = 11,945,979,123,631.91 - Step 5: Solve for x
x = 11,945,979,123,631.91/3,999,821.62 - Step 6: Final answer
x = 2,986,627.97
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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.