Finding the Fourth Proportional to 5,163,866.26, 7,125,910.75 and 2,840,611.49
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Solution
The fourth proportional to 5,163,866.26, 7,125,910.75 and 2,840,611.49 is: 3,919,920.26
Step by Step Solution
- Step 1: Write the proportion equation
5,163,866.26 : 7,125,910.75 = 2,840,611.49 : x - Step 2: Convert to fraction form
5,163,866.26/7,125,910.75 = 2,840,611.49/x - Step 3: Cross multiply
5,163,866.26x = 7,125,910.75 × 2,840,611.49 - Step 4: Simplify right side
5,163,866.26x = 20,241,943,947,807.89 - Step 5: Solve for x
x = 20,241,943,947,807.89/5,163,866.26 - Step 6: Final answer
x = 3,919,920.26
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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.