Finding the Fourth Proportional to 8,328,820.80, 12,493,231.20 and 2,649,619.20
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Solution
The fourth proportional to 8,328,820.80, 12,493,231.20 and 2,649,619.20 is: 3,974,428.80
Step by Step Solution
- Step 1: Write the proportion equation
8,328,820.80 : 12,493,231.20 = 2,649,619.20 : x - Step 2: Convert to fraction form
8,328,820.80/12,493,231.20 = 2,649,619.20/x - Step 3: Cross multiply
8,328,820.80x = 12,493,231.20 × 2,649,619.20 - Step 4: Simplify right side
8,328,820.80x = 33,102,305,257,559.04 - Step 5: Solve for x
x = 33,102,305,257,559.04/8,328,820.80 - Step 6: Final answer
x = 3,974,428.80
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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.