Finding the Fourth Proportional to 13,976,912.79, 19,245,361.88 and 13,936,556.49
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Solution
The fourth proportional to 13,976,912.79, 19,245,361.88 and 13,936,556.49 is: 19,189,793.70
Step by Step Solution
- Step 1: Write the proportion equation
13,976,912.79 : 19,245,361.88 = 13,936,556.49 : x - Step 2: Convert to fraction form
13,976,912.79/19,245,361.88 = 13,936,556.49/x - Step 3: Cross multiply
13,976,912.79x = 19,245,361.88 × 13,936,556.49 - Step 4: Simplify right side
13,976,912.79x = 268,214,072,941,429.81 - Step 5: Solve for x
x = 268,214,072,941,429.81/13,976,912.79 - Step 6: Final answer
x = 19,189,793.70
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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.