Finding the Fourth Proportional to 780,188,120.09, 1,170,157,605.16 and 227,361,236.21
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Solution
The fourth proportional to 780,188,120.09, 1,170,157,605.16 and 227,361,236.21 is: 341,005,550.86
Step by Step Solution
- Step 1: Write the proportion equation
780,188,120.09 : 1,170,157,605.16 = 227,361,236.21 : x - Step 2: Convert to fraction form
780,188,120.09/1,170,157,605.16 = 227,361,236.21/x - Step 3: Cross multiply
780,188,120.09x = 1,170,157,605.16 × 227,361,236.21 - Step 4: Simplify right side
780,188,120.09x = 266,048,479,662,723,104 - Step 5: Solve for x
x = 266,048,479,662,723,104/780,188,120.09 - Step 6: Final answer
x = 341,005,550.86
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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.