Finding the Fourth Proportional to 12,100,744.24, 18,151,051.20 and 6,979,855.12
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Solution
The fourth proportional to 12,100,744.24, 18,151,051.20 and 6,979,855.12 is: 10,469,745.09
Step by Step Solution
- Step 1: Write the proportion equation
12,100,744.24 : 18,151,051.20 = 6,979,855.12 : x - Step 2: Convert to fraction form
12,100,744.24/18,151,051.20 = 6,979,855.12/x - Step 3: Cross multiply
12,100,744.24x = 18,151,051.20 × 6,979,855.12 - Step 4: Simplify right side
12,100,744.24x = 126,691,707,651,702.14 - Step 5: Solve for x
x = 126,691,707,651,702.14/12,100,744.24 - Step 6: Final answer
x = 10,469,745.09
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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.