Finding the Fourth Proportional to 265,981,115.70, 398,971,673.55 and 254,643,707.70
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Solution
The fourth proportional to 265,981,115.70, 398,971,673.55 and 254,643,707.70 is: 381,965,561.55
Step by Step Solution
- Step 1: Write the proportion equation
265,981,115.70 : 398,971,673.55 = 254,643,707.70 : x - Step 2: Convert to fraction form
265,981,115.70/398,971,673.55 = 254,643,707.70/x - Step 3: Cross multiply
265,981,115.70x = 398,971,673.55 × 254,643,707.70 - Step 4: Simplify right side
265,981,115.70x = 101,595,626,220,046,016 - Step 5: Solve for x
x = 101,595,626,220,046,016/265,981,115.70 - Step 6: Final answer
x = 381,965,561.55
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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.