Finding the Fourth Proportional to 217,609,838.80, 326,414,758.20 and 152,986,613.20
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Solution
The fourth proportional to 217,609,838.80, 326,414,758.20 and 152,986,613.20 is: 229,479,919.80
Step by Step Solution
- Step 1: Write the proportion equation
217,609,838.80 : 326,414,758.20 = 152,986,613.20 : x - Step 2: Convert to fraction form
217,609,838.80/326,414,758.20 = 152,986,613.20/x - Step 3: Cross multiply
217,609,838.80x = 326,414,758.20 × 152,986,613.20 - Step 4: Simplify right side
217,609,838.80x = 49,937,088,355,514,920 - Step 5: Solve for x
x = 49,937,088,355,514,920/217,609,838.80 - Step 6: Final answer
x = 229,479,919.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.