Finding the Fourth Proportional to 18,203,424.40, 27,305,136.60 and 11,060,390.80
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Solution
The fourth proportional to 18,203,424.40, 27,305,136.60 and 11,060,390.80 is: 16,590,586.20
Step by Step Solution
- Step 1: Write the proportion equation
18,203,424.40 : 27,305,136.60 = 11,060,390.80 : x - Step 2: Convert to fraction form
18,203,424.40/27,305,136.60 = 11,060,390.80/x - Step 3: Cross multiply
18,203,424.40x = 27,305,136.60 × 11,060,390.80 - Step 4: Simplify right side
18,203,424.40x = 302,005,481,643,383.31 - Step 5: Solve for x
x = 302,005,481,643,383.31/18,203,424.40 - Step 6: Final answer
x = 16,590,586.20
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1.5x scale
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.