Finding the Fourth Proportional to 157,325,850.06, 217,104,917.67 and 86,761,423.91
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Solution
The fourth proportional to 157,325,850.06, 217,104,917.67 and 86,761,423.91 is: 119,728,142.49
Step by Step Solution
- Step 1: Write the proportion equation
157,325,850.06 : 217,104,917.67 = 86,761,423.91 : x - Step 2: Convert to fraction form
157,325,850.06/217,104,917.67 = 86,761,423.91/x - Step 3: Cross multiply
157,325,850.06x = 217,104,917.67 × 86,761,423.91 - Step 4: Simplify right side
157,325,850.06x = 18,836,331,793,826,996 - Step 5: Solve for x
x = 18,836,331,793,826,996/157,325,850.06 - Step 6: Final answer
x = 119,728,142.49
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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.