Finding the Fourth Proportional to 330,866,469.20, 496,299,703.80 and 221,743,917.20
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Solution
The fourth proportional to 330,866,469.20, 496,299,703.80 and 221,743,917.20 is: 332,615,875.80
Step by Step Solution
- Step 1: Write the proportion equation
330,866,469.20 : 496,299,703.80 = 221,743,917.20 : x - Step 2: Convert to fraction form
330,866,469.20/496,299,703.80 = 221,743,917.20/x - Step 3: Cross multiply
330,866,469.20x = 496,299,703.80 × 221,743,917.20 - Step 4: Simplify right side
330,866,469.20x = 110,051,440,425,811,728 - Step 5: Solve for x
x = 110,051,440,425,811,728/330,866,469.20 - Step 6: Final answer
x = 332,615,875.80
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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.