Finding the Fourth Proportional to 5,162,672.16, 7,124,660.70 and 2,839,662.96
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Solution
The fourth proportional to 5,162,672.16, 7,124,660.70 and 2,839,662.96 is: 3,918,830.11
Step by Step Solution
- Step 1: Write the proportion equation
5,162,672.16 : 7,124,660.70 = 2,839,662.96 : x - Step 2: Convert to fraction form
5,162,672.16/7,124,660.70 = 2,839,662.96/x - Step 3: Cross multiply
5,162,672.16x = 7,124,660.70 × 2,839,662.96 - Step 4: Simplify right side
5,162,672.16x = 20,231,635,092,357.67 - Step 5: Solve for x
x = 20,231,635,092,357.67/5,162,672.16 - Step 6: Final answer
x = 3,918,830.11
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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.