Finding the Fourth Proportional to 5,286,618.12, 7,929,933.30 and 1,448,473.17
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Solution
The fourth proportional to 5,286,618.12, 7,929,933.30 and 1,448,473.17 is: 2,172,711.43
Step by Step Solution
- Step 1: Write the proportion equation
5,286,618.12 : 7,929,933.30 = 1,448,473.17 : x - Step 2: Convert to fraction form
5,286,618.12/7,929,933.30 = 1,448,473.17/x - Step 3: Cross multiply
5,286,618.12x = 7,929,933.30 × 1,448,473.17 - Step 4: Simplify right side
5,286,618.12x = 11,486,295,624,939.56 - Step 5: Solve for x
x = 11,486,295,624,939.56/5,286,618.12 - Step 6: Final answer
x = 2,172,711.43
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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.