Finding the Fourth Proportional to 11,890,975.64, 16,410,698.21 and 6,664,871.54
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Solution
The fourth proportional to 11,890,975.64, 16,410,698.21 and 6,664,871.54 is: 9,198,168.33
Step by Step Solution
- Step 1: Write the proportion equation
11,890,975.64 : 16,410,698.21 = 6,664,871.54 : x - Step 2: Convert to fraction form
11,890,975.64/16,410,698.21 = 6,664,871.54/x - Step 3: Cross multiply
11,890,975.64x = 16,410,698.21 × 6,664,871.54 - Step 4: Simplify right side
11,890,975.64x = 109,375,195,509,046.88 - Step 5: Solve for x
x = 109,375,195,509,046.88/11,890,975.64 - Step 6: Final answer
x = 9,198,168.33
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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.