Finding the Fourth Proportional to 18,597,874.76, 27,897,099.21 and 7,083,984.09
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Solution
The fourth proportional to 18,597,874.76, 27,897,099.21 and 7,083,984.09 is: 10,626,085.48
Step by Step Solution
- Step 1: Write the proportion equation
18,597,874.76 : 27,897,099.21 = 7,083,984.09 : x - Step 2: Convert to fraction form
18,597,874.76/27,897,099.21 = 7,083,984.09/x - Step 3: Cross multiply
18,597,874.76x = 27,897,099.21 × 7,083,984.09 - Step 4: Simplify right side
18,597,874.76x = 197,622,606,960,791.56 - Step 5: Solve for x
x = 197,622,606,960,791.56/18,597,874.76 - Step 6: Final answer
x = 10,626,085.48
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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.