Finding the Fourth Proportional to 3,984,493.21, 5,498,574.91 and 2,265,613.61
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Solution
The fourth proportional to 3,984,493.21, 5,498,574.91 and 2,265,613.61 is: 3,126,532.15
Step by Step Solution
- Step 1: Write the proportion equation
3,984,493.21 : 5,498,574.91 = 2,265,613.61 : x - Step 2: Convert to fraction form
3,984,493.21/5,498,574.91 = 2,265,613.61/x - Step 3: Cross multiply
3,984,493.21x = 5,498,574.91 × 2,265,613.61 - Step 4: Simplify right side
3,984,493.21x = 12,457,646,118,543.62 - Step 5: Solve for x
x = 12,457,646,118,543.62/3,984,493.21 - Step 6: Final answer
x = 3,126,532.15
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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.