Finding the Fourth Proportional to 85,451,231.40, 128,176,847.10 and 62,608,453.80
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Solution
The fourth proportional to 85,451,231.40, 128,176,847.10 and 62,608,453.80 is: 93,912,680.70
Step by Step Solution
- Step 1: Write the proportion equation
85,451,231.40 : 128,176,847.10 = 62,608,453.80 : x - Step 2: Convert to fraction form
85,451,231.40/128,176,847.10 = 62,608,453.80/x - Step 3: Cross multiply
85,451,231.40x = 128,176,847.10 × 62,608,453.80 - Step 4: Simplify right side
85,451,231.40x = 8,024,954,209,890,013 - Step 5: Solve for x
x = 8,024,954,209,890,013/85,451,231.40 - Step 6: Final answer
x = 93,912,680.70
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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.