Finding the Fourth Proportional to 5,131,882.76, 7,082,220.49 and 2,840,044.19
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Solution
The fourth proportional to 5,131,882.76, 7,082,220.49 and 2,840,044.19 is: 3,919,383.99
Step by Step Solution
- Step 1: Write the proportion equation
5,131,882.76 : 7,082,220.49 = 2,840,044.19 : x - Step 2: Convert to fraction form
5,131,882.76/7,082,220.49 = 2,840,044.19/x - Step 3: Cross multiply
5,131,882.76x = 7,082,220.49 × 2,840,044.19 - Step 4: Simplify right side
5,131,882.76x = 20,113,819,112,412.24 - Step 5: Solve for x
x = 20,113,819,112,412.24/5,131,882.76 - Step 6: Final answer
x = 3,919,383.99
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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.