Finding the Fourth Proportional to 5,187,961.98, 7,107,474.78 and 4,993,957.44
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Solution
The fourth proportional to 5,187,961.98, 7,107,474.78 and 4,993,957.44 is: 6,841,689.80
Step by Step Solution
- Step 1: Write the proportion equation
5,187,961.98 : 7,107,474.78 = 4,993,957.44 : x - Step 2: Convert to fraction form
5,187,961.98/7,107,474.78 = 4,993,957.44/x - Step 3: Cross multiply
5,187,961.98x = 7,107,474.78 × 4,993,957.44 - Step 4: Simplify right side
5,187,961.98x = 35,494,426,557,193.37 - Step 5: Solve for x
x = 35,494,426,557,193.37/5,187,961.98 - Step 6: Final answer
x = 6,841,689.80
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.