Finding the Fourth Proportional to 6,886,847.40, 9,504,888.67 and 3,988,131.99
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Solution
The fourth proportional to 6,886,847.40, 9,504,888.67 and 3,988,131.99 is: 5,504,223.97
Step by Step Solution
- Step 1: Write the proportion equation
6,886,847.40 : 9,504,888.67 = 3,988,131.99 : x - Step 2: Convert to fraction form
6,886,847.40/9,504,888.67 = 3,988,131.99/x - Step 3: Cross multiply
6,886,847.40x = 9,504,888.67 × 3,988,131.99 - Step 4: Simplify right side
6,886,847.40x = 37,906,750,566,215.55 - Step 5: Solve for x
x = 37,906,750,566,215.55/6,886,847.40 - Step 6: Final answer
x = 5,504,223.97
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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.