Finding the Fourth Proportional to 4,965,115.14, 6,854,915.78 and 3,936,776.80
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Solution
The fourth proportional to 4,965,115.14, 6,854,915.78 and 3,936,776.80 is: 5,435,175.75
Step by Step Solution
- Step 1: Write the proportion equation
4,965,115.14 : 6,854,915.78 = 3,936,776.80 : x - Step 2: Convert to fraction form
4,965,115.14/6,854,915.78 = 3,936,776.80/x - Step 3: Cross multiply
4,965,115.14x = 6,854,915.78 × 3,936,776.80 - Step 4: Simplify right side
4,965,115.14x = 26,986,273,408,657.90 - Step 5: Solve for x
x = 26,986,273,408,657.90/4,965,115.14 - Step 6: Final answer
x = 5,435,175.75
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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.