Finding the Fourth Proportional to 270,981,955.20, 406,472,932.80 and 89,205,513.60
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Solution
The fourth proportional to 270,981,955.20, 406,472,932.80 and 89,205,513.60 is: 133,808,270.40
Step by Step Solution
- Step 1: Write the proportion equation
270,981,955.20 : 406,472,932.80 = 89,205,513.60 : x - Step 2: Convert to fraction form
270,981,955.20/406,472,932.80 = 89,205,513.60/x - Step 3: Cross multiply
270,981,955.20x = 406,472,932.80 × 89,205,513.60 - Step 4: Simplify right side
270,981,955.20x = 36,259,626,734,922,288 - Step 5: Solve for x
x = 36,259,626,734,922,288/270,981,955.20 - Step 6: Final answer
x = 133,808,270.40
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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.