Finding the Fourth Proportional to 18,107,891.70, 27,161,837.55 and 5,979,227.10
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Solution
The fourth proportional to 18,107,891.70, 27,161,837.55 and 5,979,227.10 is: 8,968,840.65
Step by Step Solution
- Step 1: Write the proportion equation
18,107,891.70 : 27,161,837.55 = 5,979,227.10 : x - Step 2: Convert to fraction form
18,107,891.70/27,161,837.55 = 5,979,227.10/x - Step 3: Cross multiply
18,107,891.70x = 27,161,837.55 × 5,979,227.10 - Step 4: Simplify right side
18,107,891.70x = 162,406,795,164,757.59 - Step 5: Solve for x
x = 162,406,795,164,757.59/18,107,891.70 - Step 6: Final answer
x = 8,968,840.65
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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.