Finding the Fourth Proportional to 7,128,244.20, 10,694,814.30 and 2,080,295.40
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Solution
The fourth proportional to 7,128,244.20, 10,694,814.30 and 2,080,295.40 is: 3,121,157.52
Step by Step Solution
- Step 1: Write the proportion equation
7,128,244.20 : 10,694,814.30 = 2,080,295.40 : x - Step 2: Convert to fraction form
7,128,244.20/10,694,814.30 = 2,080,295.40/x - Step 3: Cross multiply
7,128,244.20x = 10,694,814.30 × 2,080,295.40 - Step 4: Simplify right side
7,128,244.20x = 22,248,372,992,144.22 - Step 5: Solve for x
x = 22,248,372,992,144.22/7,128,244.20 - Step 6: Final answer
x = 3,121,157.52
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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.