Finding the Fourth Proportional to 3,889,468.73, 5,367,552.84 and 2,147,134.09
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Solution
The fourth proportional to 3,889,468.73, 5,367,552.84 and 2,147,134.09 is: 2,963,092.51
Step by Step Solution
- Step 1: Write the proportion equation
3,889,468.73 : 5,367,552.84 = 2,147,134.09 : x - Step 2: Convert to fraction form
3,889,468.73/5,367,552.84 = 2,147,134.09/x - Step 3: Cross multiply
3,889,468.73x = 5,367,552.84 × 2,147,134.09 - Step 4: Simplify right side
3,889,468.73x = 11,524,855,645,066.88 - Step 5: Solve for x
x = 11,524,855,645,066.88/3,889,468.73 - Step 6: Final answer
x = 2,963,092.51
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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.