Finding the Fourth Proportional to 3,240,324,626.40, 4,860,486,939.60 and 3,113,345,656.80
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Solution
The fourth proportional to 3,240,324,626.40, 4,860,486,939.60 and 3,113,345,656.80 is: 4,670,018,485.20
Step by Step Solution
- Step 1: Write the proportion equation
3,240,324,626.40 : 4,860,486,939.60 = 3,113,345,656.80 : x - Step 2: Convert to fraction form
3,240,324,626.40/4,860,486,939.60 = 3,113,345,656.80/x - Step 3: Cross multiply
3,240,324,626.40x = 4,860,486,939.60 × 3,113,345,656.80 - Step 4: Simplify right side
3,240,324,626.40x = 15,132,375,903,336,785,920 - Step 5: Solve for x
x = 15,132,375,903,336,785,920/3,240,324,626.40 - Step 6: Final answer
x = 4,670,018,485.20
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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.