Finding the Fourth Proportional to 8,125,879.82, 11,213,471.12 and 4,454,670.92
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Solution
The fourth proportional to 8,125,879.82, 11,213,471.12 and 4,454,670.92 is: 6,147,312.63
Step by Step Solution
- Step 1: Write the proportion equation
8,125,879.82 : 11,213,471.12 = 4,454,670.92 : x - Step 2: Convert to fraction form
8,125,879.82/11,213,471.12 = 4,454,670.92/x - Step 3: Cross multiply
8,125,879.82x = 11,213,471.12 × 4,454,670.92 - Step 4: Simplify right side
8,125,879.82x = 49,952,323,632,183.12 - Step 5: Solve for x
x = 49,952,323,632,183.12/8,125,879.82 - Step 6: Final answer
x = 6,147,312.63
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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.