Finding the Fourth Proportional to 5,568,486.64, 7,684,722.80 and 3,121,142.92
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Solution
The fourth proportional to 5,568,486.64, 7,684,722.80 and 3,121,142.92 is: 4,307,295.63
Step by Step Solution
- Step 1: Write the proportion equation
5,568,486.64 : 7,684,722.80 = 3,121,142.92 : x - Step 2: Convert to fraction form
5,568,486.64/7,684,722.80 = 3,121,142.92/x - Step 3: Cross multiply
5,568,486.64x = 7,684,722.80 × 3,121,142.92 - Step 4: Simplify right side
5,568,486.64x = 23,985,118,159,382.57 - Step 5: Solve for x
x = 23,985,118,159,382.57/5,568,486.64 - Step 6: Final answer
x = 4,307,295.63
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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.