Finding the Fourth Proportional to 155,279,857.20, 232,919,785.80 and 119,448,049.20
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Solution
The fourth proportional to 155,279,857.20, 232,919,785.80 and 119,448,049.20 is: 179,172,073.80
Step by Step Solution
- Step 1: Write the proportion equation
155,279,857.20 : 232,919,785.80 = 119,448,049.20 : x - Step 2: Convert to fraction form
155,279,857.20/232,919,785.80 = 119,448,049.20/x - Step 3: Cross multiply
155,279,857.20x = 232,919,785.80 × 119,448,049.20 - Step 4: Simplify right side
155,279,857.20x = 27,821,814,033,891,864 - Step 5: Solve for x
x = 27,821,814,033,891,864/155,279,857.20 - Step 6: Final answer
x = 179,172,073.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.