Finding the Fourth Proportional to 272,870,260.99, 409,305,344.75 and 86,255,205.21
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Solution
The fourth proportional to 272,870,260.99, 409,305,344.75 and 86,255,205.21 is: 129,382,793.04
Step by Step Solution
- Step 1: Write the proportion equation
272,870,260.99 : 409,305,344.75 = 86,255,205.21 : x - Step 2: Convert to fraction form
272,870,260.99/409,305,344.75 = 86,255,205.21/x - Step 3: Cross multiply
272,870,260.99x = 409,305,344.75 × 86,255,205.21 - Step 4: Simplify right side
272,870,260.99x = 35,304,716,503,692,224 - Step 5: Solve for x
x = 35,304,716,503,692,224/272,870,260.99 - Step 6: Final answer
x = 129,382,793.04
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1.5x scale
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.