Finding the Fourth Proportional to 21,678,187.44, 32,517,295.20 and 5,505,351.60
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Solution
The fourth proportional to 21,678,187.44, 32,517,295.20 and 5,505,351.60 is: 8,258,030.97
Step by Step Solution
- Step 1: Write the proportion equation
21,678,187.44 : 32,517,295.20 = 5,505,351.60 : x - Step 2: Convert to fraction form
21,678,187.44/32,517,295.20 = 5,505,351.60/x - Step 3: Cross multiply
21,678,187.44x = 32,517,295.20 × 5,505,351.60 - Step 4: Simplify right side
21,678,187.44x = 179,019,143,156,992.31 - Step 5: Solve for x
x = 179,019,143,156,992.31/21,678,187.44 - Step 6: Final answer
x = 8,258,030.97
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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.