Finding the Fourth Proportional to 12,408,964.80, 18,613,861.92 and 3,432,765.12
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Solution
The fourth proportional to 12,408,964.80, 18,613,861.92 and 3,432,765.12 is: 5,149,262.41
Step by Step Solution
- Step 1: Write the proportion equation
12,408,964.80 : 18,613,861.92 = 3,432,765.12 : x - Step 2: Convert to fraction form
12,408,964.80/18,613,861.92 = 3,432,765.12/x - Step 3: Cross multiply
12,408,964.80x = 18,613,861.92 × 3,432,765.12 - Step 4: Simplify right side
12,408,964.80x = 63,897,015,947,472.24 - Step 5: Solve for x
x = 63,897,015,947,472.24/12,408,964.80 - Step 6: Final answer
x = 5,149,262.41
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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.