Finding the Fourth Proportional to 12,474,186.21, 18,718,744.23 and 5,382,474.21
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Solution
The fourth proportional to 12,474,186.21, 18,718,744.23 and 5,382,474.21 is: 8,076,932.34
Step by Step Solution
- Step 1: Write the proportion equation
12,474,186.21 : 18,718,744.23 = 5,382,474.21 : x - Step 2: Convert to fraction form
12,474,186.21/18,718,744.23 = 5,382,474.21/x - Step 3: Cross multiply
12,474,186.21x = 18,718,744.23 × 5,382,474.21 - Step 4: Simplify right side
12,474,186.21x = 100,753,158,061,561.31 - Step 5: Solve for x
x = 100,753,158,061,561.31/12,474,186.21 - Step 6: Final answer
x = 8,076,932.34
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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.