Finding the Fourth Proportional to 18,077,839.90, 27,105,832.62 and 7,282,532.44
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Solution
The fourth proportional to 18,077,839.90, 27,105,832.62 and 7,282,532.44 is: 10,919,396.70
Step by Step Solution
- Step 1: Write the proportion equation
18,077,839.90 : 27,105,832.62 = 7,282,532.44 : x - Step 2: Convert to fraction form
18,077,839.90/27,105,832.62 = 7,282,532.44/x - Step 3: Cross multiply
18,077,839.90x = 27,105,832.62 × 7,282,532.44 - Step 4: Simplify right side
18,077,839.90x = 197,399,105,368,360.22 - Step 5: Solve for x
x = 197,399,105,368,360.22/18,077,839.90 - Step 6: Final answer
x = 10,919,396.70
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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.