Finding the Fourth Proportional to 13,342,149.16, 18,373,979.05 and 12,510,765.70
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Solution
The fourth proportional to 13,342,149.16, 18,373,979.05 and 12,510,765.70 is: 17,229,049.39
Step by Step Solution
- Step 1: Write the proportion equation
13,342,149.16 : 18,373,979.05 = 12,510,765.70 : x - Step 2: Convert to fraction form
13,342,149.16/18,373,979.05 = 12,510,765.70/x - Step 3: Cross multiply
13,342,149.16x = 18,373,979.05 × 12,510,765.70 - Step 4: Simplify right side
13,342,149.16x = 229,872,546,794,046.72 - Step 5: Solve for x
x = 229,872,546,794,046.72/13,342,149.16 - Step 6: Final answer
x = 17,229,049.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.