Finding the Fourth Proportional to 19,903,170.88, 27,474,850.56 and 13,380,583.36
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Solution
The fourth proportional to 19,903,170.88, 27,474,850.56 and 13,380,583.36 is: 18,470,902.47
Step by Step Solution
- Step 1: Write the proportion equation
19,903,170.88 : 27,474,850.56 = 13,380,583.36 : x - Step 2: Convert to fraction form
19,903,170.88/27,474,850.56 = 13,380,583.36/x - Step 3: Cross multiply
19,903,170.88x = 27,474,850.56 × 13,380,583.36 - Step 4: Simplify right side
19,903,170.88x = 367,629,528,221,622.62 - Step 5: Solve for x
x = 367,629,528,221,622.62/19,903,170.88 - Step 6: Final answer
x = 18,470,902.47
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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.