Finding the Fourth Proportional to 21,652,714.72, 32,479,599.12 and 7,275,990.88
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Solution
The fourth proportional to 21,652,714.72, 32,479,599.12 and 7,275,990.88 is: 10,914,163.42
Step by Step Solution
- Step 1: Write the proportion equation
21,652,714.72 : 32,479,599.12 = 7,275,990.88 : x - Step 2: Convert to fraction form
21,652,714.72/32,479,599.12 = 7,275,990.88/x - Step 3: Cross multiply
21,652,714.72x = 32,479,599.12 × 7,275,990.88 - Step 4: Simplify right side
21,652,714.72x = 236,321,266,983,176.03 - Step 5: Solve for x
x = 236,321,266,983,176.03/21,652,714.72 - Step 6: Final answer
x = 10,914,163.42
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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.