Finding the Fourth Proportional to 203,981,900.49, 281,415,103.61 and 125,529,251.67
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Solution
The fourth proportional to 203,981,900.49, 281,415,103.61 and 125,529,251.67 is: 173,181,185.58
Step by Step Solution
- Step 1: Write the proportion equation
203,981,900.49 : 281,415,103.61 = 125,529,251.67 : x - Step 2: Convert to fraction form
203,981,900.49/281,415,103.61 = 125,529,251.67/x - Step 3: Cross multiply
203,981,900.49x = 281,415,103.61 × 125,529,251.67 - Step 4: Simplify right side
203,981,900.49x = 35,325,827,364,171,172 - Step 5: Solve for x
x = 35,325,827,364,171,172/203,981,900.49 - Step 6: Final answer
x = 173,181,185.58
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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.