Finding the Fourth Proportional to 117,526,793.40, 176,290,190.10 and 71,542,639.80
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Solution
The fourth proportional to 117,526,793.40, 176,290,190.10 and 71,542,639.80 is: 107,313,959.70
Step by Step Solution
- Step 1: Write the proportion equation
117,526,793.40 : 176,290,190.10 = 71,542,639.80 : x - Step 2: Convert to fraction form
117,526,793.40/176,290,190.10 = 71,542,639.80/x - Step 3: Cross multiply
117,526,793.40x = 176,290,190.10 × 71,542,639.80 - Step 4: Simplify right side
117,526,793.40x = 12,612,265,570,597,826 - Step 5: Solve for x
x = 12,612,265,570,597,826/117,526,793.40 - Step 6: Final answer
x = 107,313,959.70
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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.