Finding the Fourth Proportional to 13,555,202.20, 20,348,549.70 and 8,169,933.40
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Solution
The fourth proportional to 13,555,202.20, 20,348,549.70 and 8,169,933.40 is: 12,264,390.70
Step by Step Solution
- Step 1: Write the proportion equation
13,555,202.20 : 20,348,549.70 = 8,169,933.40 : x - Step 2: Convert to fraction form
13,555,202.20/20,348,549.70 = 8,169,933.40/x - Step 3: Cross multiply
13,555,202.20x = 20,348,549.70 × 8,169,933.40 - Step 4: Simplify right side
13,555,202.20x = 166,246,295,835,589.97 - Step 5: Solve for x
x = 166,246,295,835,589.97/13,555,202.20 - Step 6: Final answer
x = 12,264,390.70
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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.