Finding the Fourth Proportional to 3,887,217.44, 5,364,368.68 and 2,168,449.28
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Solution
The fourth proportional to 3,887,217.44, 5,364,368.68 and 2,168,449.28 is: 2,992,464.81
Step by Step Solution
- Step 1: Write the proportion equation
3,887,217.44 : 5,364,368.68 = 2,168,449.28 : x - Step 2: Convert to fraction form
3,887,217.44/5,364,368.68 = 2,168,449.28/x - Step 3: Cross multiply
3,887,217.44x = 5,364,368.68 × 2,168,449.28 - Step 4: Simplify right side
3,887,217.44x = 11,632,361,401,800.55 - Step 5: Solve for x
x = 11,632,361,401,800.55/3,887,217.44 - Step 6: Final answer
x = 2,992,464.81
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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.