Finding the Fourth Proportional to 198,311,201.20, 297,176,368.20 and 177,840,881.20
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Solution
The fourth proportional to 198,311,201.20, 297,176,368.20 and 177,840,881.20 is: 266,500,867.69
Step by Step Solution
- Step 1: Write the proportion equation
198,311,201.20 : 297,176,368.20 = 177,840,881.20 : x - Step 2: Convert to fraction form
198,311,201.20/297,176,368.20 = 177,840,881.20/x - Step 3: Cross multiply
198,311,201.20x = 297,176,368.20 × 177,840,881.20 - Step 4: Simplify right side
198,311,201.20x = 52,850,107,192,503,656 - Step 5: Solve for x
x = 52,850,107,192,503,656/198,311,201.20 - Step 6: Final answer
x = 266,500,867.69
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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.