Finding the Fourth Proportional to 212,894,183.99, 319,339,147.07 and 67,327,770.17
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Solution
The fourth proportional to 212,894,183.99, 319,339,147.07 and 67,327,770.17 is: 100,990,981.99
Step by Step Solution
- Step 1: Write the proportion equation
212,894,183.99 : 319,339,147.07 = 67,327,770.17 : x - Step 2: Convert to fraction form
212,894,183.99/319,339,147.07 = 67,327,770.17/x - Step 3: Cross multiply
212,894,183.99x = 319,339,147.07 × 67,327,770.17 - Step 4: Simplify right side
212,894,183.99x = 21,500,392,701,179,456 - Step 5: Solve for x
x = 21,500,392,701,179,456/212,894,183.99 - Step 6: Final answer
x = 100,990,981.99
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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.