Finding the Fourth Proportional to 4,373,120.40, 6,560,909.40 and 2,129,331.60
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Solution
The fourth proportional to 4,373,120.40, 6,560,909.40 and 2,129,331.60 is: 3,194,595.72
Step by Step Solution
- Step 1: Write the proportion equation
4,373,120.40 : 6,560,909.40 = 2,129,331.60 : x - Step 2: Convert to fraction form
4,373,120.40/6,560,909.40 = 2,129,331.60/x - Step 3: Cross multiply
4,373,120.40x = 6,560,909.40 × 2,129,331.60 - Step 4: Simplify right side
4,373,120.40x = 13,970,351,710,157.04 - Step 5: Solve for x
x = 13,970,351,710,157.04/4,373,120.40 - Step 6: Final answer
x = 3,194,595.72
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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.