Finding the Fourth Proportional to 143,079,455.80, 214,619,183.70 and 120,121,204.60
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Solution
The fourth proportional to 143,079,455.80, 214,619,183.70 and 120,121,204.60 is: 180,181,806.90
Step by Step Solution
- Step 1: Write the proportion equation
143,079,455.80 : 214,619,183.70 = 120,121,204.60 : x - Step 2: Convert to fraction form
143,079,455.80/214,619,183.70 = 120,121,204.60/x - Step 3: Cross multiply
143,079,455.80x = 214,619,183.70 × 120,121,204.60 - Step 4: Simplify right side
143,079,455.80x = 25,780,314,876,312,684 - Step 5: Solve for x
x = 25,780,314,876,312,684/143,079,455.80 - Step 6: Final answer
x = 180,181,806.90
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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.