Finding the Fourth Proportional to 442,870,467.80, 664,305,701.70 and 328,079,211.80
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Solution
The fourth proportional to 442,870,467.80, 664,305,701.70 and 328,079,211.80 is: 492,118,817.70
Step by Step Solution
- Step 1: Write the proportion equation
442,870,467.80 : 664,305,701.70 = 328,079,211.80 : x - Step 2: Convert to fraction form
442,870,467.80/664,305,701.70 = 328,079,211.80/x - Step 3: Cross multiply
442,870,467.80x = 664,305,701.70 × 328,079,211.80 - Step 4: Simplify right side
442,870,467.80x = 217,944,891,007,981,952 - Step 5: Solve for x
x = 217,944,891,007,981,952/442,870,467.80 - Step 6: Final answer
x = 492,118,817.70
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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.