Finding the Fourth Proportional to 221,479,795.20, 332,219,692.80 and 106,436,596.80
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Solution
The fourth proportional to 221,479,795.20, 332,219,692.80 and 106,436,596.80 is: 159,654,895.20
Step by Step Solution
- Step 1: Write the proportion equation
221,479,795.20 : 332,219,692.80 = 106,436,596.80 : x - Step 2: Convert to fraction form
221,479,795.20/332,219,692.80 = 106,436,596.80/x - Step 3: Cross multiply
221,479,795.20x = 332,219,692.80 × 106,436,596.80 - Step 4: Simplify right side
221,479,795.20x = 35,360,333,491,573,464 - Step 5: Solve for x
x = 35,360,333,491,573,464/221,479,795.20 - Step 6: Final answer
x = 159,654,895.20
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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.