Finding the Fourth Proportional to 84,847,191.92, 117,085,828.74 and 51,862,668.56
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Solution
The fourth proportional to 84,847,191.92, 117,085,828.74 and 51,862,668.56 is: 71,568,467.87
Step by Step Solution
- Step 1: Write the proportion equation
84,847,191.92 : 117,085,828.74 = 51,862,668.56 : x - Step 2: Convert to fraction form
84,847,191.92/117,085,828.74 = 51,862,668.56/x - Step 3: Cross multiply
84,847,191.92x = 117,085,828.74 × 51,862,668.56 - Step 4: Simplify right side
84,847,191.92x = 6,072,383,529,015,542 - Step 5: Solve for x
x = 6,072,383,529,015,542/84,847,191.92 - Step 6: Final answer
x = 71,568,467.87
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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.