Finding the Fourth Proportional to 209,724,412.26, 289,543,696.23 and 186,455,156.70
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Solution
The fourth proportional to 209,724,412.26, 289,543,696.23 and 186,455,156.70 is: 257,418,364.75
Step by Step Solution
- Step 1: Write the proportion equation
209,724,412.26 : 289,543,696.23 = 186,455,156.70 : x - Step 2: Convert to fraction form
209,724,412.26/289,543,696.23 = 186,455,156.70/x - Step 3: Cross multiply
209,724,412.26x = 289,543,696.23 × 186,455,156.70 - Step 4: Simplify right side
209,724,412.26x = 53,986,915,252,061,848 - Step 5: Solve for x
x = 53,986,915,252,061,848/209,724,412.26 - Step 6: Final answer
x = 257,418,364.75
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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.