Finding the Fourth Proportional to 147,231,874.24, 203,180,793.60 and 85,388,879.68
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Solution
The fourth proportional to 147,231,874.24, 203,180,793.60 and 85,388,879.68 is: 117,837,122.07
Step by Step Solution
- Step 1: Write the proportion equation
147,231,874.24 : 203,180,793.60 = 85,388,879.68 : x - Step 2: Convert to fraction form
147,231,874.24/203,180,793.60 = 85,388,879.68/x - Step 3: Cross multiply
147,231,874.24x = 203,180,793.60 × 85,388,879.68 - Step 4: Simplify right side
147,231,874.24x = 17,349,380,337,997,314 - Step 5: Solve for x
x = 17,349,380,337,997,314/147,231,874.24 - Step 6: Final answer
x = 117,837,122.07
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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.