Finding the Fourth Proportional to 7,836,128.26, 11,748,826.33 and 3,990,506.65
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Solution
The fourth proportional to 7,836,128.26, 11,748,826.33 and 3,990,506.65 is: 5,983,027.33
Step by Step Solution
- Step 1: Write the proportion equation
7,836,128.26 : 11,748,826.33 = 3,990,506.65 : x - Step 2: Convert to fraction form
7,836,128.26/11,748,826.33 = 3,990,506.65/x - Step 3: Cross multiply
7,836,128.26x = 11,748,826.33 × 3,990,506.65 - Step 4: Simplify right side
7,836,128.26x = 46,883,769,520,863.43 - Step 5: Solve for x
x = 46,883,769,520,863.43/7,836,128.26 - Step 6: Final answer
x = 5,983,027.33
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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.