Finding the Fourth Proportional to 7,135,107.12, 9,846,454.50 and 4,079,385.36
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Solution
The fourth proportional to 7,135,107.12, 9,846,454.50 and 4,079,385.36 is: 5,629,555.61
Step by Step Solution
- Step 1: Write the proportion equation
7,135,107.12 : 9,846,454.50 = 4,079,385.36 : x - Step 2: Convert to fraction form
7,135,107.12/9,846,454.50 = 4,079,385.36/x - Step 3: Cross multiply
7,135,107.12x = 9,846,454.50 × 4,079,385.36 - Step 4: Simplify right side
7,135,107.12x = 40,167,482,335,206.12 - Step 5: Solve for x
x = 40,167,482,335,206.12/7,135,107.12 - Step 6: Final answer
x = 5,629,555.61
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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.