Finding the Fourth Proportional to 211,444,879.80, 317,167,319.70 and 154,049,251.80
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Solution
The fourth proportional to 211,444,879.80, 317,167,319.70 and 154,049,251.80 is: 231,073,877.70
Step by Step Solution
- Step 1: Write the proportion equation
211,444,879.80 : 317,167,319.70 = 154,049,251.80 : x - Step 2: Convert to fraction form
211,444,879.80/317,167,319.70 = 154,049,251.80/x - Step 3: Cross multiply
211,444,879.80x = 317,167,319.70 × 154,049,251.80 - Step 4: Simplify right side
211,444,879.80x = 48,859,388,295,196,400 - Step 5: Solve for x
x = 48,859,388,295,196,400/211,444,879.80 - Step 6: Final answer
x = 231,073,877.70
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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.