Finding the Fourth Proportional to 481,010,408.20, 721,515,612.30 and 412,135,654.60
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Solution
The fourth proportional to 481,010,408.20, 721,515,612.30 and 412,135,654.60 is: 618,203,481.90
Step by Step Solution
- Step 1: Write the proportion equation
481,010,408.20 : 721,515,612.30 = 412,135,654.60 : x - Step 2: Convert to fraction form
481,010,408.20/721,515,612.30 = 412,135,654.60/x - Step 3: Cross multiply
481,010,408.20x = 721,515,612.30 × 412,135,654.60 - Step 4: Simplify right side
481,010,408.20x = 297,362,309,179,380,288 - Step 5: Solve for x
x = 297,362,309,179,380,288/481,010,408.20 - Step 6: Final answer
x = 618,203,481.90
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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.