Finding the Fourth Proportional to 5,711,128.24, 8,561,231.34 and 2,115,930.28
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Solution
The fourth proportional to 5,711,128.24, 8,561,231.34 and 2,115,930.28 is: 3,171,872.15
Step by Step Solution
- Step 1: Write the proportion equation
5,711,128.24 : 8,561,231.34 = 2,115,930.28 : x - Step 2: Convert to fraction form
5,711,128.24/8,561,231.34 = 2,115,930.28/x - Step 3: Cross multiply
5,711,128.24x = 8,561,231.34 × 2,115,930.28 - Step 4: Simplify right side
5,711,128.24x = 18,114,968,626,390.97 - Step 5: Solve for x
x = 18,114,968,626,390.97/5,711,128.24 - Step 6: Final answer
x = 3,171,872.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.