Finding the Fourth Proportional to 3,889,472.16, 5,367,557.58 and 2,147,137.53
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Solution
The fourth proportional to 3,889,472.16, 5,367,557.58 and 2,147,137.53 is: 2,963,097.27
Step by Step Solution
- Step 1: Write the proportion equation
3,889,472.16 : 5,367,557.58 = 2,147,137.53 : x - Step 2: Convert to fraction form
3,889,472.16/5,367,557.58 = 2,147,137.53/x - Step 3: Cross multiply
3,889,472.16x = 5,367,557.58 × 2,147,137.53 - Step 4: Simplify right side
3,889,472.16x = 11,524,884,324,453.98 - Step 5: Solve for x
x = 11,524,884,324,453.98/3,889,472.16 - Step 6: Final answer
x = 2,963,097.27
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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.