Finding the Fourth Proportional to 7,446,919.80, 11,170,379.70 and 2,660,014.20
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Solution
The fourth proportional to 7,446,919.80, 11,170,379.70 and 2,660,014.20 is: 3,990,021.30
Step by Step Solution
- Step 1: Write the proportion equation
7,446,919.80 : 11,170,379.70 = 2,660,014.20 : x - Step 2: Convert to fraction form
7,446,919.80/11,170,379.70 = 2,660,014.20/x - Step 3: Cross multiply
7,446,919.80x = 11,170,379.70 × 2,660,014.20 - Step 4: Simplify right side
7,446,919.80x = 29,713,368,621,391.74 - Step 5: Solve for x
x = 29,713,368,621,391.74/7,446,919.80 - Step 6: Final answer
x = 3,990,021.30
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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.