Finding the Fourth Proportional to 22,378,796.70, 30,882,694.14 and 12,589,247.76
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Solution
The fourth proportional to 22,378,796.70, 30,882,694.14 and 12,589,247.76 is: 17,373,136.42
Step by Step Solution
- Step 1: Write the proportion equation
22,378,796.70 : 30,882,694.14 = 12,589,247.76 : x - Step 2: Convert to fraction form
22,378,796.70/30,882,694.14 = 12,589,247.76/x - Step 3: Cross multiply
22,378,796.70x = 30,882,694.14 × 12,589,247.76 - Step 4: Simplify right side
22,378,796.70x = 388,789,888,024,760.12 - Step 5: Solve for x
x = 388,789,888,024,760.12/22,378,796.70 - Step 6: Final answer
x = 17,373,136.42
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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.