Finding the Fourth Proportional to 4,126,471,478.40, 6,189,707,217.60 and 2,820,402,076.80
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Solution
The fourth proportional to 4,126,471,478.40, 6,189,707,217.60 and 2,820,402,076.80 is: 4,230,603,115.20
Step by Step Solution
- Step 1: Write the proportion equation
4,126,471,478.40 : 6,189,707,217.60 = 2,820,402,076.80 : x - Step 2: Convert to fraction form
4,126,471,478.40/6,189,707,217.60 = 2,820,402,076.80/x - Step 3: Cross multiply
4,126,471,478.40x = 6,189,707,217.60 × 2,820,402,076.80 - Step 4: Simplify right side
4,126,471,478.40x = 17,457,463,091,302,991,872 - Step 5: Solve for x
x = 17,457,463,091,302,991,872/4,126,471,478.40 - Step 6: Final answer
x = 4,230,603,115.20
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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.