Finding the Fourth Proportional to 18,146,720.40, 27,220,080.60 and 16,761,037.20
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Solution
The fourth proportional to 18,146,720.40, 27,220,080.60 and 16,761,037.20 is: 25,141,555.80
Step by Step Solution
- Step 1: Write the proportion equation
18,146,720.40 : 27,220,080.60 = 16,761,037.20 : x - Step 2: Convert to fraction form
18,146,720.40/27,220,080.60 = 16,761,037.20/x - Step 3: Cross multiply
18,146,720.40x = 27,220,080.60 × 16,761,037.20 - Step 4: Simplify right side
18,146,720.40x = 456,236,783,523,598.31 - Step 5: Solve for x
x = 456,236,783,523,598.31/18,146,720.40 - Step 6: Final answer
x = 25,141,555.80
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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.