Finding the Fourth Proportional to 11,121,747.40, 16,661,625.90 and 5,711,984.20
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Solution
The fourth proportional to 11,121,747.40, 16,661,625.90 and 5,711,984.20 is: 8,557,193.44
Step by Step Solution
- Step 1: Write the proportion equation
11,121,747.40 : 16,661,625.90 = 5,711,984.20 : x - Step 2: Convert to fraction form
11,121,747.40/16,661,625.90 = 5,711,984.20/x - Step 3: Cross multiply
11,121,747.40x = 16,661,625.90 × 5,711,984.20 - Step 4: Simplify right side
11,121,747.40x = 95,170,943,887,110.78 - Step 5: Solve for x
x = 95,170,943,887,110.78/11,121,747.40 - Step 6: Final answer
x = 8,557,193.44
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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.