Finding the Fourth Proportional to 12,694,879.46, 17,521,723.62 and 8,344,370.81
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Solution
The fourth proportional to 12,694,879.46, 17,521,723.62 and 8,344,370.81 is: 11,517,065.57
Step by Step Solution
- Step 1: Write the proportion equation
12,694,879.46 : 17,521,723.62 = 8,344,370.81 : x - Step 2: Convert to fraction form
12,694,879.46/17,521,723.62 = 8,344,370.81/x - Step 3: Cross multiply
12,694,879.46x = 17,521,723.62 × 8,344,370.81 - Step 4: Simplify right side
12,694,879.46x = 146,207,759,028,006.91 - Step 5: Solve for x
x = 146,207,759,028,006.91/12,694,879.46 - Step 6: Final answer
x = 11,517,065.57
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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.