Finding the Fourth Proportional to 13,148,859.06, 19,727,717.27 and 8,285,517.81
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Solution
The fourth proportional to 13,148,859.06, 19,727,717.27 and 8,285,517.81 is: 12,431,067.37
Step by Step Solution
- Step 1: Write the proportion equation
13,148,859.06 : 19,727,717.27 = 8,285,517.81 : x - Step 2: Convert to fraction form
13,148,859.06/19,727,717.27 = 8,285,517.81/x - Step 3: Cross multiply
13,148,859.06x = 19,727,717.27 × 8,285,517.81 - Step 4: Simplify right side
13,148,859.06x = 163,454,352,749,802 - Step 5: Solve for x
x = 163,454,352,749,802/13,148,859.06 - Step 6: Final answer
x = 12,431,067.37
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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.