Finding the Fourth Proportional to 11,478,169.20, 15,840,589.56 and 6,321,529.44
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Solution
The fourth proportional to 11,478,169.20, 15,840,589.56 and 6,321,529.44 is: 8,724,104.99
Step by Step Solution
- Step 1: Write the proportion equation
11,478,169.20 : 15,840,589.56 = 6,321,529.44 : x - Step 2: Convert to fraction form
11,478,169.20/15,840,589.56 = 6,321,529.44/x - Step 3: Cross multiply
11,478,169.20x = 15,840,589.56 × 6,321,529.44 - Step 4: Simplify right side
11,478,169.20x = 100,136,753,250,496.66 - Step 5: Solve for x
x = 100,136,753,250,496.66/11,478,169.20 - Step 6: Final answer
x = 8,724,104.99
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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.