Finding the Fourth Proportional to 18,529,101.60, 27,804,571.20 and 7,745,571.60
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Solution
The fourth proportional to 18,529,101.60, 27,804,571.20 and 7,745,571.60 is: 11,622,921.70
Step by Step Solution
- Step 1: Write the proportion equation
18,529,101.60 : 27,804,571.20 = 7,745,571.60 : x - Step 2: Convert to fraction form
18,529,101.60/27,804,571.20 = 7,745,571.60/x - Step 3: Cross multiply
18,529,101.60x = 27,804,571.20 × 7,745,571.60 - Step 4: Simplify right side
18,529,101.60x = 215,362,297,036,897.91 - Step 5: Solve for x
x = 215,362,297,036,897.91/18,529,101.60 - Step 6: Final answer
x = 11,622,921.70
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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.