Finding the Fourth Proportional to 288,861,717.36, 398,629,169.92 and 165,105,051.68
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Solution
The fourth proportional to 288,861,717.36, 398,629,169.92 and 165,105,051.68 is: 227,844,971.30
Step by Step Solution
- Step 1: Write the proportion equation
288,861,717.36 : 398,629,169.92 = 165,105,051.68 : x - Step 2: Convert to fraction form
288,861,717.36/398,629,169.92 = 165,105,051.68/x - Step 3: Cross multiply
288,861,717.36x = 398,629,169.92 × 165,105,051.68 - Step 4: Simplify right side
288,861,717.36x = 65,815,689,700,797,104 - Step 5: Solve for x
x = 65,815,689,700,797,104/288,861,717.36 - Step 6: Final answer
x = 227,844,971.30
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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.