Finding the Fourth Proportional to 115,605,937.70, 159,540,793.96 and 63,396,845.82
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Solution
The fourth proportional to 115,605,937.70, 159,540,793.96 and 63,396,845.82 is: 87,490,169.78
Step by Step Solution
- Step 1: Write the proportion equation
115,605,937.70 : 159,540,793.96 = 63,396,845.82 : x - Step 2: Convert to fraction form
115,605,937.70/159,540,793.96 = 63,396,845.82/x - Step 3: Cross multiply
115,605,937.70x = 159,540,793.96 × 63,396,845.82 - Step 4: Simplify right side
115,605,937.70x = 10,114,383,116,682,508 - Step 5: Solve for x
x = 10,114,383,116,682,508/115,605,937.70 - Step 6: Final answer
x = 87,490,169.78
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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.