Finding the Fourth Proportional to 16,420,102.40, 24,588,163.20 and 12,137,081.60
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Solution
The fourth proportional to 16,420,102.40, 24,588,163.20 and 12,137,081.60 is: 18,174,584.78
Step by Step Solution
- Step 1: Write the proportion equation
16,420,102.40 : 24,588,163.20 = 12,137,081.60 : x - Step 2: Convert to fraction form
16,420,102.40/24,588,163.20 = 12,137,081.60/x - Step 3: Cross multiply
16,420,102.40x = 24,588,163.20 × 12,137,081.60 - Step 4: Simplify right side
16,420,102.40x = 298,428,543,152,517.12 - Step 5: Solve for x
x = 298,428,543,152,517.12/16,420,102.40 - Step 6: Final answer
x = 18,174,584.78
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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.