Finding the Fourth Proportional to 221,479,920.20, 332,219,880.30 and 106,436,721.80
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Solution
The fourth proportional to 221,479,920.20, 332,219,880.30 and 106,436,721.80 is: 159,655,082.70
Step by Step Solution
- Step 1: Write the proportion equation
221,479,920.20 : 332,219,880.30 = 106,436,721.80 : x - Step 2: Convert to fraction form
221,479,920.20/332,219,880.30 = 106,436,721.80/x - Step 3: Cross multiply
221,479,920.20x = 332,219,880.30 × 106,436,721.80 - Step 4: Simplify right side
221,479,920.20x = 35,360,394,975,920,400 - Step 5: Solve for x
x = 35,360,394,975,920,400/221,479,920.20 - Step 6: Final answer
x = 159,655,082.70
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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.