Finding the Fourth Proportional to 19,431,471.42, 26,805,745.16 and 11,585,450.16
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Solution
The fourth proportional to 19,431,471.42, 26,805,745.16 and 11,585,450.16 is: 15,982,146.58
Step by Step Solution
- Step 1: Write the proportion equation
19,431,471.42 : 26,805,745.16 = 11,585,450.16 : x - Step 2: Convert to fraction form
19,431,471.42/26,805,745.16 = 11,585,450.16/x - Step 3: Cross multiply
19,431,471.42x = 26,805,745.16 × 11,585,450.16 - Step 4: Simplify right side
19,431,471.42x = 310,556,624,494,914 - Step 5: Solve for x
x = 310,556,624,494,914/19,431,471.42 - Step 6: Final answer
x = 15,982,146.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.