Finding the Fourth Proportional to 12,463,630.80, 18,695,446.20 and 11,875,765.20
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Solution
The fourth proportional to 12,463,630.80, 18,695,446.20 and 11,875,765.20 is: 17,813,647.80
Step by Step Solution
- Step 1: Write the proportion equation
12,463,630.80 : 18,695,446.20 = 11,875,765.20 : x - Step 2: Convert to fraction form
12,463,630.80/18,695,446.20 = 11,875,765.20/x - Step 3: Cross multiply
12,463,630.80x = 18,695,446.20 × 11,875,765.20 - Step 4: Simplify right side
12,463,630.80x = 222,022,729,380,432.22 - Step 5: Solve for x
x = 222,022,729,380,432.22/12,463,630.80 - Step 6: Final answer
x = 17,813,647.80
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1.5x scale
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.