Finding the Fourth Proportional to 8,086,443.20, 12,129,664.80 and 2,102,811.20
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Solution
The fourth proportional to 8,086,443.20, 12,129,664.80 and 2,102,811.20 is: 3,154,216.80
Step by Step Solution
- Step 1: Write the proportion equation
8,086,443.20 : 12,129,664.80 = 2,102,811.20 : x - Step 2: Convert to fraction form
8,086,443.20/12,129,664.80 = 2,102,811.20/x - Step 3: Cross multiply
8,086,443.20x = 12,129,664.80 × 2,102,811.20 - Step 4: Simplify right side
8,086,443.20x = 25,506,394,993,685.77 - Step 5: Solve for x
x = 25,506,394,993,685.77/8,086,443.20 - Step 6: Final answer
x = 3,154,216.80
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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.