Finding the Fourth Proportional to 2,086,204,124.88, 3,129,790,217.16 and 687,138,189.60
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Solution
The fourth proportional to 2,086,204,124.88, 3,129,790,217.16 and 687,138,189.60 is: 1,030,866,710.50
Step by Step Solution
- Step 1: Write the proportion equation
2,086,204,124.88 : 3,129,790,217.16 = 687,138,189.60 : x - Step 2: Convert to fraction form
2,086,204,124.88/3,129,790,217.16 = 687,138,189.60/x - Step 3: Cross multiply
2,086,204,124.88x = 3,129,790,217.16 × 687,138,189.60 - Step 4: Simplify right side
2,086,204,124.88x = 2,150,598,383,647,113,216 - Step 5: Solve for x
x = 2,150,598,383,647,113,216/2,086,204,124.88 - Step 6: Final answer
x = 1,030,866,710.50
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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.