Finding the Fourth Proportional to 7,218,511.26, 9,960,883.11 and 4,162,135.02
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Solution
The fourth proportional to 7,218,511.26, 9,960,883.11 and 4,162,135.02 is: 5,743,364.38
Step by Step Solution
- Step 1: Write the proportion equation
7,218,511.26 : 9,960,883.11 = 4,162,135.02 : x - Step 2: Convert to fraction form
7,218,511.26/9,960,883.11 = 4,162,135.02/x - Step 3: Cross multiply
7,218,511.26x = 9,960,883.11 × 4,162,135.02 - Step 4: Simplify right side
7,218,511.26x = 41,458,540,422,257.51 - Step 5: Solve for x
x = 41,458,540,422,257.51/7,218,511.26 - Step 6: Final answer
x = 5,743,364.38
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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.