Finding the Fourth Proportional to 86,632,370.74, 129,861,065.18 and 54,306,930.63
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Solution
The fourth proportional to 86,632,370.74, 129,861,065.18 and 54,306,930.63 is: 81,405,550.81
Step by Step Solution
- Step 1: Write the proportion equation
86,632,370.74 : 129,861,065.18 = 54,306,930.63 : x - Step 2: Convert to fraction form
86,632,370.74/129,861,065.18 = 54,306,930.63/x - Step 3: Cross multiply
86,632,370.74x = 129,861,065.18 × 54,306,930.63 - Step 4: Simplify right side
86,632,370.74x = 7,052,355,858,585,167 - Step 5: Solve for x
x = 7,052,355,858,585,167/86,632,370.74 - Step 6: Final answer
x = 81,405,550.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.