Finding the Fourth Proportional to 7,704,268.80, 11,557,785.60 and 3,216,998.40
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Solution
The fourth proportional to 7,704,268.80, 11,557,785.60 and 3,216,998.40 is: 4,826,074.84
Step by Step Solution
- Step 1: Write the proportion equation
7,704,268.80 : 11,557,785.60 = 3,216,998.40 : x - Step 2: Convert to fraction form
7,704,268.80/11,557,785.60 = 3,216,998.40/x - Step 3: Cross multiply
7,704,268.80x = 11,557,785.60 × 3,216,998.40 - Step 4: Simplify right side
7,704,268.80x = 37,181,377,782,743.04 - Step 5: Solve for x
x = 37,181,377,782,743.04/7,704,268.80 - Step 6: Final answer
x = 4,826,074.84
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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.