Finding the Fourth Proportional to 18,670,496.34, 27,989,770.60 and 7,164,220.96
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Solution
The fourth proportional to 18,670,496.34, 27,989,770.60 and 7,164,220.96 is: 10,740,201.95
Step by Step Solution
- Step 1: Write the proportion equation
18,670,496.34 : 27,989,770.60 = 7,164,220.96 : x - Step 2: Convert to fraction form
18,670,496.34/27,989,770.60 = 7,164,220.96/x - Step 3: Cross multiply
18,670,496.34x = 27,989,770.60 × 7,164,220.96 - Step 4: Simplify right side
18,670,496.34x = 200,524,901,198,111.78 - Step 5: Solve for x
x = 200,524,901,198,111.78/18,670,496.34 - Step 6: Final answer
x = 10,740,201.95
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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.