Finding the Fourth Proportional to 18,431,414.71, 27,659,464.67 and 7,648,725.92
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Solution
The fourth proportional to 18,431,414.71, 27,659,464.67 and 7,648,725.92 is: 11,478,210.85
Step by Step Solution
- Step 1: Write the proportion equation
18,431,414.71 : 27,659,464.67 = 7,648,725.92 : x - Step 2: Convert to fraction form
18,431,414.71/27,659,464.67 = 7,648,725.92/x - Step 3: Cross multiply
18,431,414.71x = 27,659,464.67 × 7,648,725.92 - Step 4: Simplify right side
18,431,414.71x = 211,559,664,235,577.72 - Step 5: Solve for x
x = 211,559,664,235,577.72/18,431,414.71 - Step 6: Final answer
x = 11,478,210.85
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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.