Finding the Fourth Proportional to 5,170,144.80, 7,134,660.42 and 2,878,305.68
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Solution
The fourth proportional to 5,170,144.80, 7,134,660.42 and 2,878,305.68 is: 3,971,984.23
Step by Step Solution
- Step 1: Write the proportion equation
5,170,144.80 : 7,134,660.42 = 2,878,305.68 : x - Step 2: Convert to fraction form
5,170,144.80/7,134,660.42 = 2,878,305.68/x - Step 3: Cross multiply
5,170,144.80x = 7,134,660.42 × 2,878,305.68 - Step 4: Simplify right side
5,170,144.80x = 20,535,733,611,757.19 - Step 5: Solve for x
x = 20,535,733,611,757.19/5,170,144.80 - Step 6: Final answer
x = 3,971,984.23
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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.