Finding the Fourth Proportional to 11,279,183.68, 16,889,637.85 and 7,784,525.05
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Solution
The fourth proportional to 11,279,183.68, 16,889,637.85 and 7,784,525.05 is: 11,656,677.70
Step by Step Solution
- Step 1: Write the proportion equation
11,279,183.68 : 16,889,637.85 = 7,784,525.05 : x - Step 2: Convert to fraction form
11,279,183.68/16,889,637.85 = 7,784,525.05/x - Step 3: Cross multiply
11,279,183.68x = 16,889,637.85 × 7,784,525.05 - Step 4: Simplify right side
11,279,183.68x = 131,477,808,867,067.73 - Step 5: Solve for x
x = 131,477,808,867,067.73/11,279,183.68 - Step 6: Final answer
x = 11,656,677.70
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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.