Finding the Fourth Proportional to 7,836,107.34, 11,748,794.87 and 3,990,485.63
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Solution
The fourth proportional to 7,836,107.34, 11,748,794.87 and 3,990,485.63 is: 5,982,995.76
Step by Step Solution
- Step 1: Write the proportion equation
7,836,107.34 : 11,748,794.87 = 3,990,485.63 : x - Step 2: Convert to fraction form
7,836,107.34/11,748,794.87 = 3,990,485.63/x - Step 3: Cross multiply
7,836,107.34x = 11,748,794.87 × 3,990,485.63 - Step 4: Simplify right side
7,836,107.34x = 46,883,397,019,856.32 - Step 5: Solve for x
x = 46,883,397,019,856.32/7,836,107.34 - Step 6: Final answer
x = 5,982,995.76
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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.