Finding the Fourth Proportional to 13,392,976.40, 18,486,240.84 and 8,747,471.62
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Solution
The fourth proportional to 13,392,976.40, 18,486,240.84 and 8,747,471.62 is: 12,074,079.90
Step by Step Solution
- Step 1: Write the proportion equation
13,392,976.40 : 18,486,240.84 = 8,747,471.62 : x - Step 2: Convert to fraction form
13,392,976.40/18,486,240.84 = 8,747,471.62/x - Step 3: Cross multiply
13,392,976.40x = 18,486,240.84 × 8,747,471.62 - Step 4: Simplify right side
13,392,976.40x = 161,707,867,108,384.94 - Step 5: Solve for x
x = 161,707,867,108,384.94/13,392,976.40 - Step 6: Final answer
x = 12,074,079.90
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1.5x scale
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.