Finding the Fourth Proportional to 3,646,622.60, 5,474,858.70 and 2,131,857.80
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Solution
The fourth proportional to 3,646,622.60, 5,474,858.70 and 2,131,857.80 is: 3,200,665.80
Step by Step Solution
- Step 1: Write the proportion equation
3,646,622.60 : 5,474,858.70 = 2,131,857.80 : x - Step 2: Convert to fraction form
3,646,622.60/5,474,858.70 = 2,131,857.80/x - Step 3: Cross multiply
3,646,622.60x = 5,474,858.70 × 2,131,857.80 - Step 4: Simplify right side
3,646,622.60x = 11,671,620,223,492.86 - Step 5: Solve for x
x = 11,671,620,223,492.86/3,646,622.60 - Step 6: Final answer
x = 3,200,665.80
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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.