Finding the Fourth Proportional to 396,972,028.80, 595,458,043.20 and 379,115,611.20
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Solution
The fourth proportional to 396,972,028.80, 595,458,043.20 and 379,115,611.20 is: 568,673,416.80
Step by Step Solution
- Step 1: Write the proportion equation
396,972,028.80 : 595,458,043.20 = 379,115,611.20 : x - Step 2: Convert to fraction form
396,972,028.80/595,458,043.20 = 379,115,611.20/x - Step 3: Cross multiply
396,972,028.80x = 595,458,043.20 × 379,115,611.20 - Step 4: Simplify right side
396,972,028.80x = 225,747,439,991,724,000 - Step 5: Solve for x
x = 225,747,439,991,724,000/396,972,028.80 - Step 6: Final answer
x = 568,673,416.80
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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.