Finding the Fourth Proportional to 6,441,478.54, 8,889,350.80 and 3,540,991.66
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Solution
The fourth proportional to 6,441,478.54, 8,889,350.80 and 3,540,991.66 is: 4,886,629.19
Step by Step Solution
- Step 1: Write the proportion equation
6,441,478.54 : 8,889,350.80 = 3,540,991.66 : x - Step 2: Convert to fraction form
6,441,478.54/8,889,350.80 = 3,540,991.66/x - Step 3: Cross multiply
6,441,478.54x = 8,889,350.80 × 3,540,991.66 - Step 4: Simplify right side
6,441,478.54x = 31,477,117,045,614.33 - Step 5: Solve for x
x = 31,477,117,045,614.33/6,441,478.54 - Step 6: Final answer
x = 4,886,629.19
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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.