Finding the Fourth Proportional to 12,143,467.60, 18,212,518.49 and 3,505,691.68
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Solution
The fourth proportional to 12,143,467.60, 18,212,518.49 and 3,505,691.68 is: 5,257,762.99
Step by Step Solution
- Step 1: Write the proportion equation
12,143,467.60 : 18,212,518.49 = 3,505,691.68 : x - Step 2: Convert to fraction form
12,143,467.60/18,212,518.49 = 3,505,691.68/x - Step 3: Cross multiply
12,143,467.60x = 18,212,518.49 × 3,505,691.68 - Step 4: Simplify right side
12,143,467.60x = 63,847,474,479,179.41 - Step 5: Solve for x
x = 63,847,474,479,179.41/12,143,467.60 - Step 6: Final answer
x = 5,257,762.99
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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.