Finding the Fourth Proportional to 12,149,743.40, 18,224,906.70 and 3,630,357.80
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Solution
The fourth proportional to 12,149,743.40, 18,224,906.70 and 3,630,357.80 is: 5,445,623.83
Step by Step Solution
- Step 1: Write the proportion equation
12,149,743.40 : 18,224,906.70 = 3,630,357.80 : x - Step 2: Convert to fraction form
12,149,743.40/18,224,906.70 = 3,630,357.80/x - Step 3: Cross multiply
12,149,743.40x = 18,224,906.70 × 3,630,357.80 - Step 4: Simplify right side
12,149,743.40x = 66,162,932,192,617.25 - Step 5: Solve for x
x = 66,162,932,192,617.25/12,149,743.40 - Step 6: Final answer
x = 5,445,623.83
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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.