Finding the Fourth Proportional to 5,645,514.38, 7,790,864.70 and 3,198,073.08
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Solution
The fourth proportional to 5,645,514.38, 7,790,864.70 and 3,198,073.08 is: 4,413,371.94
Step by Step Solution
- Step 1: Write the proportion equation
5,645,514.38 : 7,790,864.70 = 3,198,073.08 : x - Step 2: Convert to fraction form
5,645,514.38/7,790,864.70 = 3,198,073.08/x - Step 3: Cross multiply
5,645,514.38x = 7,790,864.70 × 3,198,073.08 - Step 4: Simplify right side
5,645,514.38x = 24,915,754,708,200.80 - Step 5: Solve for x
x = 24,915,754,708,200.80/5,645,514.38 - Step 6: Final answer
x = 4,413,371.94
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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.