Finding the Fourth Proportional to 5,162,620.68, 7,124,589.38 and 2,839,611.44
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Solution
The fourth proportional to 5,162,620.68, 7,124,589.38 and 2,839,611.44 is: 3,918,758.86
Step by Step Solution
- Step 1: Write the proportion equation
5,162,620.68 : 7,124,589.38 = 2,839,611.44 : x - Step 2: Convert to fraction form
5,162,620.68/7,124,589.38 = 2,839,611.44/x - Step 3: Cross multiply
5,162,620.68x = 7,124,589.38 × 2,839,611.44 - Step 4: Simplify right side
5,162,620.68x = 20,231,065,508,750.51 - Step 5: Solve for x
x = 20,231,065,508,750.51/5,162,620.68 - Step 6: Final answer
x = 3,918,758.86
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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.