Finding the Fourth Proportional to 6,479,971.75, 9,721,532.40 and 1,992,247.75
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Solution
The fourth proportional to 6,479,971.75, 9,721,532.40 and 1,992,247.75 is: 2,988,855.78
Step by Step Solution
- Step 1: Write the proportion equation
6,479,971.75 : 9,721,532.40 = 1,992,247.75 : x - Step 2: Convert to fraction form
6,479,971.75/9,721,532.40 = 1,992,247.75/x - Step 3: Cross multiply
6,479,971.75x = 9,721,532.40 × 1,992,247.75 - Step 4: Simplify right side
6,479,971.75x = 19,367,701,050,452.10 - Step 5: Solve for x
x = 19,367,701,050,452.10/6,479,971.75 - Step 6: Final answer
x = 2,988,855.78
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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.