Finding the Fourth Proportional to 7,234,441.23, 9,983,489.49 and 3,971,311.49
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Solution
The fourth proportional to 7,234,441.23, 9,983,489.49 and 3,971,311.49 is: 5,480,388.22
Step by Step Solution
- Step 1: Write the proportion equation
7,234,441.23 : 9,983,489.49 = 3,971,311.49 : x - Step 2: Convert to fraction form
7,234,441.23/9,983,489.49 = 3,971,311.49/x - Step 3: Cross multiply
7,234,441.23x = 9,983,489.49 × 3,971,311.49 - Step 4: Simplify right side
7,234,441.23x = 39,647,546,521,931.24 - Step 5: Solve for x
x = 39,647,546,521,931.24/7,234,441.23 - Step 6: Final answer
x = 5,480,388.22
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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.