Finding the Fourth Proportional to 194,894,137.22, 292,378,076.61 and 78,318,568.07
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Solution
The fourth proportional to 194,894,137.22, 292,378,076.61 and 78,318,568.07 is: 117,492,668.70
Step by Step Solution
- Step 1: Write the proportion equation
194,894,137.22 : 292,378,076.61 = 78,318,568.07 : x - Step 2: Convert to fraction form
194,894,137.22/292,378,076.61 = 78,318,568.07/x - Step 3: Cross multiply
194,894,137.22x = 292,378,076.61 × 78,318,568.07 - Step 4: Simplify right side
194,894,137.22x = 22,898,632,295,155,960 - Step 5: Solve for x
x = 22,898,632,295,155,960/194,894,137.22 - Step 6: Final answer
x = 117,492,668.70
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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.