Finding the Fourth Proportional to 209,279,029.84, 288,802,769.17 and 115,191,165.18
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Solution
The fourth proportional to 209,279,029.84, 288,802,769.17 and 115,191,165.18 is: 158,962,546.38
Step by Step Solution
- Step 1: Write the proportion equation
209,279,029.84 : 288,802,769.17 = 115,191,165.18 : x - Step 2: Convert to fraction form
209,279,029.84/288,802,769.17 = 115,191,165.18/x - Step 3: Cross multiply
209,279,029.84x = 288,802,769.17 × 115,191,165.18 - Step 4: Simplify right side
209,279,029.84x = 33,267,527,487,902,884 - Step 5: Solve for x
x = 33,267,527,487,902,884/209,279,029.84 - Step 6: Final answer
x = 158,962,546.38
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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.