Finding the Fourth Proportional to 7,728,367.73, 11,648,101.94 and 6,661,754.06
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Solution
The fourth proportional to 7,728,367.73, 11,648,101.94 and 6,661,754.06 is: 10,040,514.77
Step by Step Solution
- Step 1: Write the proportion equation
7,728,367.73 : 11,648,101.94 = 6,661,754.06 : x - Step 2: Convert to fraction form
7,728,367.73/11,648,101.94 = 6,661,754.06/x - Step 3: Cross multiply
7,728,367.73x = 11,648,101.94 × 6,661,754.06 - Step 4: Simplify right side
7,728,367.73x = 77,596,790,323,521.17 - Step 5: Solve for x
x = 77,596,790,323,521.17/7,728,367.73 - Step 6: Final answer
x = 10,040,514.77
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.