Finding the Fourth Proportional to 5,639,900.64, 7,783,184.16 and 3,192,514.80
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Solution
The fourth proportional to 5,639,900.64, 7,783,184.16 and 3,192,514.80 is: 4,405,739.07
Step by Step Solution
- Step 1: Write the proportion equation
5,639,900.64 : 7,783,184.16 = 3,192,514.80 : x - Step 2: Convert to fraction form
5,639,900.64/7,783,184.16 = 3,192,514.80/x - Step 3: Cross multiply
5,639,900.64x = 7,783,184.16 × 3,192,514.80 - Step 4: Simplify right side
5,639,900.64x = 24,847,930,621,925.57 - Step 5: Solve for x
x = 24,847,930,621,925.57/5,639,900.64 - Step 6: Final answer
x = 4,405,739.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.