Finding the Fourth Proportional to 96,245,231.20, 144,367,846.80 and 57,981,479.20
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Solution
The fourth proportional to 96,245,231.20, 144,367,846.80 and 57,981,479.20 is: 86,972,218.80
Step by Step Solution
- Step 1: Write the proportion equation
96,245,231.20 : 144,367,846.80 = 57,981,479.20 : x - Step 2: Convert to fraction form
96,245,231.20/144,367,846.80 = 57,981,479.20/x - Step 3: Cross multiply
96,245,231.20x = 144,367,846.80 × 57,981,479.20 - Step 4: Simplify right side
96,245,231.20x = 8,370,661,306,382,988 - Step 5: Solve for x
x = 8,370,661,306,382,988/96,245,231.20 - Step 6: Final answer
x = 86,972,218.80
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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.