Finding the Fourth Proportional to 3,909,093.12, 5,394,879.36 and 2,190,188.16
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Solution
The fourth proportional to 3,909,093.12, 5,394,879.36 and 2,190,188.16 is: 3,022,645.03
Step by Step Solution
- Step 1: Write the proportion equation
3,909,093.12 : 5,394,879.36 = 2,190,188.16 : x - Step 2: Convert to fraction form
3,909,093.12/5,394,879.36 = 2,190,188.16/x - Step 3: Cross multiply
3,909,093.12x = 5,394,879.36 × 2,190,188.16 - Step 4: Simplify right side
3,909,093.12x = 11,815,800,898,900.38 - Step 5: Solve for x
x = 11,815,800,898,900.38/3,909,093.12 - Step 6: Final answer
x = 3,022,645.03
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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.