Finding the Fourth Proportional to 18,355,230.80, 27,532,846.20 and 11,188,869.20
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Solution
The fourth proportional to 18,355,230.80, 27,532,846.20 and 11,188,869.20 is: 16,783,303.80
Step by Step Solution
- Step 1: Write the proportion equation
18,355,230.80 : 27,532,846.20 = 11,188,869.20 : x - Step 2: Convert to fraction form
18,355,230.80/27,532,846.20 = 11,188,869.20/x - Step 3: Cross multiply
18,355,230.80x = 27,532,846.20 × 11,188,869.20 - Step 4: Simplify right side
18,355,230.80x = 308,061,414,835,517 - Step 5: Solve for x
x = 308,061,414,835,517/18,355,230.80 - Step 6: Final answer
x = 16,783,303.80
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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.