Finding the Fourth Proportional to 121,279,299.80, 181,918,949.70 and 44,586,458.60
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Solution
The fourth proportional to 121,279,299.80, 181,918,949.70 and 44,586,458.60 is: 66,879,687.90
Step by Step Solution
- Step 1: Write the proportion equation
121,279,299.80 : 181,918,949.70 = 44,586,458.60 : x - Step 2: Convert to fraction form
121,279,299.80/181,918,949.70 = 44,586,458.60/x - Step 3: Cross multiply
121,279,299.80x = 181,918,949.70 × 44,586,458.60 - Step 4: Simplify right side
121,279,299.80x = 8,111,121,719,354,532 - Step 5: Solve for x
x = 8,111,121,719,354,532/121,279,299.80 - Step 6: Final answer
x = 66,879,687.90
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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.