Finding the Fourth Proportional to 198,263,021.40, 297,279,058.50 and 76,952,755.80
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Solution
The fourth proportional to 198,263,021.40, 297,279,058.50 and 76,952,755.80 is: 115,384,314.39
Step by Step Solution
- Step 1: Write the proportion equation
198,263,021.40 : 297,279,058.50 = 76,952,755.80 : x - Step 2: Convert to fraction form
198,263,021.40/297,279,058.50 = 76,952,755.80/x - Step 3: Cross multiply
198,263,021.40x = 297,279,058.50 × 76,952,755.80 - Step 4: Simplify right side
198,263,021.40x = 22,876,442,793,204,412 - Step 5: Solve for x
x = 22,876,442,793,204,412/198,263,021.40 - Step 6: Final answer
x = 115,384,314.39
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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.