Finding the Fourth Proportional to 21,318,627.44, 29,419,936.96 and 11,529,261.84
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Solution
The fourth proportional to 21,318,627.44, 29,419,936.96 and 11,529,261.84 is: 15,910,506.32
Step by Step Solution
- Step 1: Write the proportion equation
21,318,627.44 : 29,419,936.96 = 11,529,261.84 : x - Step 2: Convert to fraction form
21,318,627.44/29,419,936.96 = 11,529,261.84/x - Step 3: Cross multiply
21,318,627.44x = 29,419,936.96 × 11,529,261.84 - Step 4: Simplify right side
21,318,627.44x = 339,190,156,528,133.62 - Step 5: Solve for x
x = 339,190,156,528,133.62/21,318,627.44 - Step 6: Final answer
x = 15,910,506.32
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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.