Finding the Fourth Proportional to 2,103,168, 2,902,163.84 and 1,287,601.60
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Solution
The fourth proportional to 2,103,168, 2,902,163.84 and 1,287,601.60 is: 1,776,762.87
Step by Step Solution
- Step 1: Write the proportion equation
2,103,168 : 2,902,163.84 = 1,287,601.60 : x - Step 2: Convert to fraction form
2,103,168/2,902,163.84 = 1,287,601.60/x - Step 3: Cross multiply
2,103,168x = 2,902,163.84 × 1,287,601.60 - Step 4: Simplify right side
2,103,168x = 3,736,830,803,846.14 - Step 5: Solve for x
x = 3,736,830,803,846.14/2,103,168 - Step 6: Final answer
x = 1,776,762.87
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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.