Finding the Fourth Proportional to 207,981,594, 287,011,091.41 and 115,160,108.94
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Solution
The fourth proportional to 207,981,594, 287,011,091.41 and 115,160,108.94 is: 158,919,007.77
Step by Step Solution
- Step 1: Write the proportion equation
207,981,594 : 287,011,091.41 = 115,160,108.94 : x - Step 2: Convert to fraction form
207,981,594/287,011,091.41 = 115,160,108.94/x - Step 3: Cross multiply
207,981,594x = 287,011,091.41 × 115,160,108.94 - Step 4: Simplify right side
207,981,594x = 33,052,228,553,476,000 - Step 5: Solve for x
x = 33,052,228,553,476,000/207,981,594 - Step 6: Final answer
x = 158,919,007.77
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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.