Finding the Fourth Proportional to 18,348,079.20, 27,522,021.60 and 4,701,199.20
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Solution
The fourth proportional to 18,348,079.20, 27,522,021.60 and 4,701,199.20 is: 7,051,773.90
Step by Step Solution
- Step 1: Write the proportion equation
18,348,079.20 : 27,522,021.60 = 4,701,199.20 : x - Step 2: Convert to fraction form
18,348,079.20/27,522,021.60 = 4,701,199.20/x - Step 3: Cross multiply
18,348,079.20x = 27,522,021.60 × 4,701,199.20 - Step 4: Simplify right side
18,348,079.20x = 129,386,505,928,302.73 - Step 5: Solve for x
x = 129,386,505,928,302.73/18,348,079.20 - Step 6: Final answer
x = 7,051,773.90
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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.