Finding the Fourth Proportional to 18,168,109.11, 27,241,186.97 and 7,239,979.94
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Solution
The fourth proportional to 18,168,109.11, 27,241,186.97 and 7,239,979.94 is: 10,855,595.70
Step by Step Solution
- Step 1: Write the proportion equation
18,168,109.11 : 27,241,186.97 = 7,239,979.94 : x - Step 2: Convert to fraction form
18,168,109.11/27,241,186.97 = 7,239,979.94/x - Step 3: Cross multiply
18,168,109.11x = 27,241,186.97 × 7,239,979.94 - Step 4: Simplify right side
18,168,109.11x = 197,225,647,045,758.50 - Step 5: Solve for x
x = 197,225,647,045,758.50/18,168,109.11 - Step 6: Final answer
x = 10,855,595.70
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1.5x scale
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.