Finding the Fourth Proportional to 7,239,706.79, 9,991,489.19 and 4,141,615.01
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Solution
The fourth proportional to 7,239,706.79, 9,991,489.19 and 4,141,615.01 is: 5,715,825.62
Step by Step Solution
- Step 1: Write the proportion equation
7,239,706.79 : 9,991,489.19 = 4,141,615.01 : x - Step 2: Convert to fraction form
7,239,706.79/9,991,489.19 = 4,141,615.01/x - Step 3: Cross multiply
7,239,706.79x = 9,991,489.19 × 4,141,615.01 - Step 4: Simplify right side
7,239,706.79x = 41,380,901,530,891.22 - Step 5: Solve for x
x = 41,380,901,530,891.22/7,239,706.79 - Step 6: Final answer
x = 5,715,825.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.