Finding the Fourth Proportional to 13,062,982.30, 18,027,378.14 and 7,183,063.99
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Solution
The fourth proportional to 13,062,982.30, 18,027,378.14 and 7,183,063.99 is: 9,912,882.66
Step by Step Solution
- Step 1: Write the proportion equation
13,062,982.30 : 18,027,378.14 = 7,183,063.99 : x - Step 2: Convert to fraction form
13,062,982.30/18,027,378.14 = 7,183,063.99/x - Step 3: Cross multiply
13,062,982.30x = 18,027,378.14 × 7,183,063.99 - Step 4: Simplify right side
13,062,982.30x = 129,491,810,751,547.19 - Step 5: Solve for x
x = 129,491,810,751,547.19/13,062,982.30 - Step 6: Final answer
x = 9,912,882.66
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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.