Finding the Fourth Proportional to 8,018,620.28, 11,054,991.16 and 6,370,236.76
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Solution
The fourth proportional to 8,018,620.28, 11,054,991.16 and 6,370,236.76 is: 8,782,422.49
Step by Step Solution
- Step 1: Write the proportion equation
8,018,620.28 : 11,054,991.16 = 6,370,236.76 : x - Step 2: Convert to fraction form
8,018,620.28/11,054,991.16 = 6,370,236.76/x - Step 3: Cross multiply
8,018,620.28x = 11,054,991.16 × 6,370,236.76 - Step 4: Simplify right side
8,018,620.28x = 70,422,911,068,907.05 - Step 5: Solve for x
x = 70,422,911,068,907.05/8,018,620.28 - Step 6: Final answer
x = 8,782,422.49
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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.