Finding the Fourth Proportional to 14,454,516.12, 19,947,260.72 and 7,928,198.68
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Solution
The fourth proportional to 14,454,516.12, 19,947,260.72 and 7,928,198.68 is: 10,940,929.80
Step by Step Solution
- Step 1: Write the proportion equation
14,454,516.12 : 19,947,260.72 = 7,928,198.68 : x - Step 2: Convert to fraction form
14,454,516.12/19,947,260.72 = 7,928,198.68/x - Step 3: Cross multiply
14,454,516.12x = 19,947,260.72 × 7,928,198.68 - Step 4: Simplify right side
14,454,516.12x = 158,145,846,109,919.84 - Step 5: Solve for x
x = 158,145,846,109,919.84/14,454,516.12 - Step 6: Final answer
x = 10,940,929.80
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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.