Finding the Fourth Proportional to 18,449,618.40, 27,674,427.60 and 18,166,183.20
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Solution
The fourth proportional to 18,449,618.40, 27,674,427.60 and 18,166,183.20 is: 27,249,274.80
Step by Step Solution
- Step 1: Write the proportion equation
18,449,618.40 : 27,674,427.60 = 18,166,183.20 : x - Step 2: Convert to fraction form
18,449,618.40/27,674,427.60 = 18,166,183.20/x - Step 3: Cross multiply
18,449,618.40x = 27,674,427.60 × 18,166,183.20 - Step 4: Simplify right side
18,449,618.40x = 502,738,721,736,736.31 - Step 5: Solve for x
x = 502,738,721,736,736.31/18,449,618.40 - Step 6: Final answer
x = 27,249,274.80
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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.