Finding the Fourth Proportional to 5,321,635.58, 7,343,854.80 and 2,874,245.70
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Solution
The fourth proportional to 5,321,635.58, 7,343,854.80 and 2,874,245.70 is: 3,966,457.82
Step by Step Solution
- Step 1: Write the proportion equation
5,321,635.58 : 7,343,854.80 = 2,874,245.70 : x - Step 2: Convert to fraction form
5,321,635.58/7,343,854.80 = 2,874,245.70/x - Step 3: Cross multiply
5,321,635.58x = 7,343,854.80 × 2,874,245.70 - Step 4: Simplify right side
5,321,635.58x = 21,108,043,080,324.36 - Step 5: Solve for x
x = 21,108,043,080,324.36/5,321,635.58 - Step 6: Final answer
x = 3,966,457.82
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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.