Finding the Fourth Proportional to 1,660,972,612.20, 2,491,458,918.30 and 1,635,144,579.60
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Solution
The fourth proportional to 1,660,972,612.20, 2,491,458,918.30 and 1,635,144,579.60 is: 2,452,716,869.40
Step by Step Solution
- Step 1: Write the proportion equation
1,660,972,612.20 : 2,491,458,918.30 = 1,635,144,579.60 : x - Step 2: Convert to fraction form
1,660,972,612.20/2,491,458,918.30 = 1,635,144,579.60/x - Step 3: Cross multiply
1,660,972,612.20x = 2,491,458,918.30 × 1,635,144,579.60 - Step 4: Simplify right side
1,660,972,612.20x = 4,073,895,545,554,324,480 - Step 5: Solve for x
x = 4,073,895,545,554,324,480/1,660,972,612.20 - Step 6: Final answer
x = 2,452,716,869.40
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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.