Finding the Fourth Proportional to 11,920,512.30, 17,880,768.45 and 6,163,234.80
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Solution
The fourth proportional to 11,920,512.30, 17,880,768.45 and 6,163,234.80 is: 9,244,852.20
Step by Step Solution
- Step 1: Write the proportion equation
11,920,512.30 : 17,880,768.45 = 6,163,234.80 : x - Step 2: Convert to fraction form
11,920,512.30/17,880,768.45 = 6,163,234.80/x - Step 3: Cross multiply
11,920,512.30x = 17,880,768.45 × 6,163,234.80 - Step 4: Simplify right side
11,920,512.30x = 110,203,374,361,782.05 - Step 5: Solve for x
x = 110,203,374,361,782.05/11,920,512.30 - Step 6: Final answer
x = 9,244,852.20
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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.