Finding the Fourth Proportional to 3,889,448.99, 5,367,298.92 and 2,147,080.97
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Solution
The fourth proportional to 3,889,448.99, 5,367,298.92 and 2,147,080.97 is: 2,962,894.08
Step by Step Solution
- Step 1: Write the proportion equation
3,889,448.99 : 5,367,298.92 = 2,147,080.97 : x - Step 2: Convert to fraction form
3,889,448.99/5,367,298.92 = 2,147,080.97/x - Step 3: Cross multiply
3,889,448.99x = 5,367,298.92 × 2,147,080.97 - Step 4: Simplify right side
3,889,448.99x = 11,524,025,376,800.25 - Step 5: Solve for x
x = 11,524,025,376,800.25/3,889,448.99 - Step 6: Final answer
x = 2,962,894.08
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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.