Finding the Fourth Proportional to 116,105,253.15, 160,189,177.65 and 65,861,190.99
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Solution
The fourth proportional to 116,105,253.15, 160,189,177.65 and 65,861,190.99 is: 90,867,981.75
Step by Step Solution
- Step 1: Write the proportion equation
116,105,253.15 : 160,189,177.65 = 65,861,190.99 : x - Step 2: Convert to fraction form
116,105,253.15/160,189,177.65 = 65,861,190.99/x - Step 3: Cross multiply
116,105,253.15x = 160,189,177.65 × 65,861,190.99 - Step 4: Simplify right side
116,105,253.15x = 10,550,250,023,737,690 - Step 5: Solve for x
x = 10,550,250,023,737,690/116,105,253.15 - Step 6: Final answer
x = 90,867,981.75
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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.