Finding the Fourth Proportional to 212,894,197.16, 319,339,166.84 and 67,327,783.34
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Solution
The fourth proportional to 212,894,197.16, 319,339,166.84 and 67,327,783.34 is: 100,991,001.75
Step by Step Solution
- Step 1: Write the proportion equation
212,894,197.16 : 319,339,166.84 = 67,327,783.34 : x - Step 2: Convert to fraction form
212,894,197.16/319,339,166.84 = 67,327,783.34/x - Step 3: Cross multiply
212,894,197.16x = 319,339,166.84 × 67,327,783.34 - Step 4: Simplify right side
212,894,197.16x = 21,500,398,236,979,632 - Step 5: Solve for x
x = 21,500,398,236,979,632/212,894,197.16 - Step 6: Final answer
x = 100,991,001.75
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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.