Finding the Fourth Proportional to 1,891,851,287.20, 2,837,766,608.19 and 771,370,549.09
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Solution
The fourth proportional to 1,891,851,287.20, 2,837,766,608.19 and 771,370,549.09 is: 1,157,051,614.77
Step by Step Solution
- Step 1: Write the proportion equation
1,891,851,287.20 : 2,837,766,608.19 = 771,370,549.09 : x - Step 2: Convert to fraction form
1,891,851,287.20/2,837,766,608.19 = 771,370,549.09/x - Step 3: Cross multiply
1,891,851,287.20x = 2,837,766,608.19 × 771,370,549.09 - Step 4: Simplify right side
1,891,851,287.20x = 2,188,969,586,753,965,568 - Step 5: Solve for x
x = 2,188,969,586,753,965,568/1,891,851,287.20 - Step 6: Final answer
x = 1,157,051,614.77
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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.