Finding the Fourth Proportional to 2,112,278.40, 3,159,201.60 and 1,889,251.20
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Solution
The fourth proportional to 2,112,278.40, 3,159,201.60 and 1,889,251.20 is: 2,825,633.88
Step by Step Solution
- Step 1: Write the proportion equation
2,112,278.40 : 3,159,201.60 = 1,889,251.20 : x - Step 2: Convert to fraction form
2,112,278.40/3,159,201.60 = 1,889,251.20/x - Step 3: Cross multiply
2,112,278.40x = 3,159,201.60 × 1,889,251.20 - Step 4: Simplify right side
2,112,278.40x = 5,968,525,413,841.92 - Step 5: Solve for x
x = 5,968,525,413,841.92/2,112,278.40 - Step 6: Final answer
x = 2,825,633.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.