Finding the Fourth Proportional to 5,311,794.20, 7,971,529.44 and 2,115,078.08
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Solution
The fourth proportional to 5,311,794.20, 7,971,529.44 and 2,115,078.08 is: 3,174,145.41
Step by Step Solution
- Step 1: Write the proportion equation
5,311,794.20 : 7,971,529.44 = 2,115,078.08 : x - Step 2: Convert to fraction form
5,311,794.20/7,971,529.44 = 2,115,078.08/x - Step 3: Cross multiply
5,311,794.20x = 7,971,529.44 × 2,115,078.08 - Step 4: Simplify right side
5,311,794.20x = 16,860,407,182,618.68 - Step 5: Solve for x
x = 16,860,407,182,618.68/5,311,794.20 - Step 6: Final answer
x = 3,174,145.41
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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.