Finding the Fourth Proportional to 3,821,851.05, 5,274,299.99 and 2,190,573.23
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Solution
The fourth proportional to 3,821,851.05, 5,274,299.99 and 2,190,573.23 is: 3,023,074.47
Step by Step Solution
- Step 1: Write the proportion equation
3,821,851.05 : 5,274,299.99 = 2,190,573.23 : x - Step 2: Convert to fraction form
3,821,851.05/5,274,299.99 = 2,190,573.23/x - Step 3: Cross multiply
3,821,851.05x = 5,274,299.99 × 2,190,573.23 - Step 4: Simplify right side
3,821,851.05x = 11,553,740,327,758.90 - Step 5: Solve for x
x = 11,553,740,327,758.90/3,821,851.05 - Step 6: Final answer
x = 3,023,074.47
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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.