Finding the Fourth Proportional to 311,635,257.26, 430,057,073.67 and 170,519,735.66
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Solution
The fourth proportional to 311,635,257.26, 430,057,073.67 and 170,519,735.66 is: 235,317,464.29
Step by Step Solution
- Step 1: Write the proportion equation
311,635,257.26 : 430,057,073.67 = 170,519,735.66 : x - Step 2: Convert to fraction form
311,635,257.26/430,057,073.67 = 170,519,735.66/x - Step 3: Cross multiply
311,635,257.26x = 430,057,073.67 × 170,519,735.66 - Step 4: Simplify right side
311,635,257.26x = 73,333,218,520,921,552 - Step 5: Solve for x
x = 73,333,218,520,921,552/311,635,257.26 - Step 6: Final answer
x = 235,317,464.29
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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.