Finding the Fourth Proportional to 7,165,739.52, 9,889,418.88 and 5,351,754.24
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Solution
The fourth proportional to 7,165,739.52, 9,889,418.88 and 5,351,754.24 is: 7,385,942.41
Step by Step Solution
- Step 1: Write the proportion equation
7,165,739.52 : 9,889,418.88 = 5,351,754.24 : x - Step 2: Convert to fraction form
7,165,739.52/9,889,418.88 = 5,351,754.24/x - Step 3: Cross multiply
7,165,739.52x = 9,889,418.88 × 5,351,754.24 - Step 4: Simplify right side
7,165,739.52x = 52,925,739,422,176.05 - Step 5: Solve for x
x = 52,925,739,422,176.05/7,165,739.52 - Step 6: Final answer
x = 7,385,942.41
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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.