Finding the Fourth Proportional to 13,286,571.28, 19,929,857.22 and 3,189,192.28
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Solution
The fourth proportional to 13,286,571.28, 19,929,857.22 and 3,189,192.28 is: 4,783,788.49
Step by Step Solution
- Step 1: Write the proportion equation
13,286,571.28 : 19,929,857.22 = 3,189,192.28 : x - Step 2: Convert to fraction form
13,286,571.28/19,929,857.22 = 3,189,192.28/x - Step 3: Cross multiply
13,286,571.28x = 19,929,857.22 × 3,189,192.28 - Step 4: Simplify right side
13,286,571.28x = 63,560,146,787,526.25 - Step 5: Solve for x
x = 63,560,146,787,526.25/13,286,571.28 - Step 6: Final answer
x = 4,783,788.49
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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.