Finding the Fourth Proportional to 5,135,311,746.27, 7,697,591,391.51 and 2,149,085,778
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Solution
The fourth proportional to 5,135,311,746.27, 7,697,591,391.51 and 2,149,085,778 is: 3,221,378,759.79
Step by Step Solution
- Step 1: Write the proportion equation
5,135,311,746.27 : 7,697,591,391.51 = 2,149,085,778 : x - Step 2: Convert to fraction form
5,135,311,746.27/7,697,591,391.51 = 2,149,085,778/x - Step 3: Cross multiply
5,135,311,746.27x = 7,697,591,391.51 × 2,149,085,778 - Step 4: Simplify right side
5,135,311,746.27x = 16,542,784,184,349,372,416 - Step 5: Solve for x
x = 16,542,784,184,349,372,416/5,135,311,746.27 - Step 6: Final answer
x = 3,221,378,759.79
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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.