Finding the Fourth Proportional to 235,002,145.48, 324,310,260.64 and 129,153,640.12
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Solution
The fourth proportional to 235,002,145.48, 324,310,260.64 and 129,153,640.12 is: 178,236,035.27
Step by Step Solution
- Step 1: Write the proportion equation
235,002,145.48 : 324,310,260.64 = 129,153,640.12 : x - Step 2: Convert to fraction form
235,002,145.48/324,310,260.64 = 129,153,640.12/x - Step 3: Cross multiply
235,002,145.48x = 324,310,260.64 × 129,153,640.12 - Step 4: Simplify right side
235,002,145.48x = 41,885,850,689,921,960 - Step 5: Solve for x
x = 41,885,850,689,921,960/235,002,145.48 - Step 6: Final answer
x = 178,236,035.27
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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.