Finding the Fourth Proportional to 6,349,128.20, 8,761,861.20 and 3,448,575.70
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Solution
The fourth proportional to 6,349,128.20, 8,761,861.20 and 3,448,575.70 is: 4,759,069.38
Step by Step Solution
- Step 1: Write the proportion equation
6,349,128.20 : 8,761,861.20 = 3,448,575.70 : x - Step 2: Convert to fraction form
6,349,128.20/8,761,861.20 = 3,448,575.70/x - Step 3: Cross multiply
6,349,128.20x = 8,761,861.20 × 3,448,575.70 - Step 4: Simplify right side
6,349,128.20x = 30,215,941,621,092.84 - Step 5: Solve for x
x = 30,215,941,621,092.84/6,349,128.20 - Step 6: Final answer
x = 4,759,069.38
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1.5x scale
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.