Finding the Fourth Proportional to 115,305,642.56, 159,117,034.56 and 68,921,469.92
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Solution
The fourth proportional to 115,305,642.56, 159,117,034.56 and 68,921,469.92 is: 95,108,787.98
Step by Step Solution
- Step 1: Write the proportion equation
115,305,642.56 : 159,117,034.56 = 68,921,469.92 : x - Step 2: Convert to fraction form
115,305,642.56/159,117,034.56 = 68,921,469.92/x - Step 3: Cross multiply
115,305,642.56x = 159,117,034.56 × 68,921,469.92 - Step 4: Simplify right side
115,305,642.56x = 10,966,579,911,186,640 - Step 5: Solve for x
x = 10,966,579,911,186,640/115,305,642.56 - Step 6: Final answer
x = 95,108,787.98
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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.