Finding the Fourth Proportional to 12,297,739.20, 18,451,857.60 and 5,904,700.80
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Solution
The fourth proportional to 12,297,739.20, 18,451,857.60 and 5,904,700.80 is: 8,859,571.39
Step by Step Solution
- Step 1: Write the proportion equation
12,297,739.20 : 18,451,857.60 = 5,904,700.80 : x - Step 2: Convert to fraction form
12,297,739.20/18,451,857.60 = 5,904,700.80/x - Step 3: Cross multiply
12,297,739.20x = 18,451,857.60 × 5,904,700.80 - Step 4: Simplify right side
12,297,739.20x = 108,952,698,332,206.08 - Step 5: Solve for x
x = 108,952,698,332,206.08/12,297,739.20 - Step 6: Final answer
x = 8,859,571.39
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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.