Finding the Fourth Proportional to 3,887,217.70, 5,364,369.04 and 2,168,449.54
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Solution
The fourth proportional to 3,887,217.70, 5,364,369.04 and 2,168,449.54 is: 2,992,465.17
Step by Step Solution
- Step 1: Write the proportion equation
3,887,217.70 : 5,364,369.04 = 2,168,449.54 : x - Step 2: Convert to fraction form
3,887,217.70/5,364,369.04 = 2,168,449.54/x - Step 3: Cross multiply
3,887,217.70x = 5,364,369.04 × 2,168,449.54 - Step 4: Simplify right side
3,887,217.70x = 11,632,363,577,178.24 - Step 5: Solve for x
x = 11,632,363,577,178.24/3,887,217.70 - Step 6: Final answer
x = 2,992,465.17
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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.