Finding the Fourth Proportional to 5,135,311,805.91, 7,697,591,481.08 and 2,149,085,837.85
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Solution
The fourth proportional to 5,135,311,805.91, 7,697,591,481.08 and 2,149,085,837.85 is: 3,221,378,849.58
Step by Step Solution
- Step 1: Write the proportion equation
5,135,311,805.91 : 7,697,591,481.08 = 2,149,085,837.85 : x - Step 2: Convert to fraction form
5,135,311,805.91/7,697,591,481.08 = 2,149,085,837.85/x - Step 3: Cross multiply
5,135,311,805.91x = 7,697,591,481.08 × 2,149,085,837.85 - Step 4: Simplify right side
5,135,311,805.91x = 16,542,784,837,533,087,744 - Step 5: Solve for x
x = 16,542,784,837,533,087,744/5,135,311,805.91 - Step 6: Final answer
x = 3,221,378,849.58
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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.