Finding the Fourth Proportional to 18,240,372.28, 27,345,105.42 and 7,997,469.40
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Solution
The fourth proportional to 18,240,372.28, 27,345,105.42 and 7,997,469.40 is: 11,989,428.75
Step by Step Solution
- Step 1: Write the proportion equation
18,240,372.28 : 27,345,105.42 = 7,997,469.40 : x - Step 2: Convert to fraction form
18,240,372.28/27,345,105.42 = 7,997,469.40/x - Step 3: Cross multiply
18,240,372.28x = 27,345,105.42 × 7,997,469.40 - Step 4: Simplify right side
18,240,372.28x = 218,691,643,836,224.19 - Step 5: Solve for x
x = 218,691,643,836,224.19/18,240,372.28 - Step 6: Final answer
x = 11,989,428.75
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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.