Finding the Fourth Proportional to 5,331,043.80, 7,994,232.90 and 2,135,107.80
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Solution
The fourth proportional to 5,331,043.80, 7,994,232.90 and 2,135,107.80 is: 3,201,727.40
Step by Step Solution
- Step 1: Write the proportion equation
5,331,043.80 : 7,994,232.90 = 2,135,107.80 : x - Step 2: Convert to fraction form
5,331,043.80/7,994,232.90 = 2,135,107.80/x - Step 3: Cross multiply
5,331,043.80x = 7,994,232.90 × 2,135,107.80 - Step 4: Simplify right side
5,331,043.80x = 17,068,549,019,806.62 - Step 5: Solve for x
x = 17,068,549,019,806.62/5,331,043.80 - Step 6: Final answer
x = 3,201,727.40
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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.