Finding the Fourth Proportional to 8,091,893.80, 12,137,840.70 and 3,296,969.20
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Solution
The fourth proportional to 8,091,893.80, 12,137,840.70 and 3,296,969.20 is: 4,945,453.80
Step by Step Solution
- Step 1: Write the proportion equation
8,091,893.80 : 12,137,840.70 = 3,296,969.20 : x - Step 2: Convert to fraction form
8,091,893.80/12,137,840.70 = 3,296,969.20/x - Step 3: Cross multiply
8,091,893.80x = 12,137,840.70 × 3,296,969.20 - Step 4: Simplify right side
8,091,893.80x = 40,018,086,942,406.44 - Step 5: Solve for x
x = 40,018,086,942,406.44/8,091,893.80 - Step 6: Final answer
x = 4,945,453.80
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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.