Finding the Fourth Proportional to 21,635,621.38, 32,448,118.47 and 7,258,367.62
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Solution
The fourth proportional to 21,635,621.38, 32,448,118.47 and 7,258,367.62 is: 10,885,768.81
Step by Step Solution
- Step 1: Write the proportion equation
21,635,621.38 : 32,448,118.47 = 7,258,367.62 : x - Step 2: Convert to fraction form
21,635,621.38/32,448,118.47 = 7,258,367.62/x - Step 3: Cross multiply
21,635,621.38x = 32,448,118.47 × 7,258,367.62 - Step 4: Simplify right side
21,635,621.38x = 235,520,372,432,571.94 - Step 5: Solve for x
x = 235,520,372,432,571.94/21,635,621.38 - Step 6: Final answer
x = 10,885,768.81
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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.