Finding the Fourth Proportional to 8,911,157.88, 12,297,412.62 and 4,836,778.68
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Solution
The fourth proportional to 8,911,157.88, 12,297,412.62 and 4,836,778.68 is: 6,674,762.58
Step by Step Solution
- Step 1: Write the proportion equation
8,911,157.88 : 12,297,412.62 = 4,836,778.68 : x - Step 2: Convert to fraction form
8,911,157.88/12,297,412.62 = 4,836,778.68/x - Step 3: Cross multiply
8,911,157.88x = 12,297,412.62 × 4,836,778.68 - Step 4: Simplify right side
8,911,157.88x = 59,479,863,179,578.94 - Step 5: Solve for x
x = 59,479,863,179,578.94/8,911,157.88 - Step 6: Final answer
x = 6,674,762.58
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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.