Finding the Fourth Proportional to 3,320,991.37, 4,977,209.97 and 1,611,826.99
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Solution
The fourth proportional to 3,320,991.37, 4,977,209.97 and 1,611,826.99 is: 2,415,664.62
Step by Step Solution
- Step 1: Write the proportion equation
3,320,991.37 : 4,977,209.97 = 1,611,826.99 : x - Step 2: Convert to fraction form
3,320,991.37/4,977,209.97 = 1,611,826.99/x - Step 3: Cross multiply
3,320,991.37x = 4,977,209.97 × 1,611,826.99 - Step 4: Simplify right side
3,320,991.37x = 8,022,401,364,543.09 - Step 5: Solve for x
x = 8,022,401,364,543.09/3,320,991.37 - Step 6: Final answer
x = 2,415,664.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.