Finding the Fourth Proportional to 5,197,716.06, 7,790,451.32 and 2,121,785.90
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Solution
The fourth proportional to 5,197,716.06, 7,790,451.32 and 2,121,785.90 is: 3,180,179.44
Step by Step Solution
- Step 1: Write the proportion equation
5,197,716.06 : 7,790,451.32 = 2,121,785.90 : x - Step 2: Convert to fraction form
5,197,716.06/7,790,451.32 = 2,121,785.90/x - Step 3: Cross multiply
5,197,716.06x = 7,790,451.32 × 2,121,785.90 - Step 4: Simplify right side
5,197,716.06x = 16,529,669,765,412.39 - Step 5: Solve for x
x = 16,529,669,765,412.39/5,197,716.06 - Step 6: Final answer
x = 3,180,179.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.