Finding the Fourth Proportional to 80,775,342.80, 121,163,014.20 and 48,526,715.60
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Solution
The fourth proportional to 80,775,342.80, 121,163,014.20 and 48,526,715.60 is: 72,790,073.40
Step by Step Solution
- Step 1: Write the proportion equation
80,775,342.80 : 121,163,014.20 = 48,526,715.60 : x - Step 2: Convert to fraction form
80,775,342.80/121,163,014.20 = 48,526,715.60/x - Step 3: Cross multiply
80,775,342.80x = 121,163,014.20 × 48,526,715.60 - Step 4: Simplify right side
80,775,342.80x = 5,879,643,131,322,162 - Step 5: Solve for x
x = 5,879,643,131,322,162/80,775,342.80 - Step 6: Final answer
x = 72,790,073.40
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Similar ratio
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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.