Finding the Fourth Proportional to 121,848,680.36, 168,150,183.68 and 66,093,961.20
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Solution
The fourth proportional to 121,848,680.36, 168,150,183.68 and 66,093,961.20 is: 91,209,126.62
Step by Step Solution
- Step 1: Write the proportion equation
121,848,680.36 : 168,150,183.68 = 66,093,961.20 : x - Step 2: Convert to fraction form
121,848,680.36/168,150,183.68 = 66,093,961.20/x - Step 3: Cross multiply
121,848,680.36x = 168,150,183.68 × 66,093,961.20 - Step 4: Simplify right side
121,848,680.36x = 11,113,711,715,588,324 - Step 5: Solve for x
x = 11,113,711,715,588,324/121,848,680.36 - Step 6: Final answer
x = 91,209,126.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.