Finding the Fourth Proportional to 6,288,628.20, 9,432,942.30 and 5,603,659.80
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Solution
The fourth proportional to 6,288,628.20, 9,432,942.30 and 5,603,659.80 is: 8,405,489.70
Step by Step Solution
- Step 1: Write the proportion equation
6,288,628.20 : 9,432,942.30 = 5,603,659.80 : x - Step 2: Convert to fraction form
6,288,628.20/9,432,942.30 = 5,603,659.80/x - Step 3: Cross multiply
6,288,628.20x = 9,432,942.30 × 5,603,659.80 - Step 4: Simplify right side
6,288,628.20x = 52,858,999,562,229.54 - Step 5: Solve for x
x = 52,858,999,562,229.54/6,288,628.20 - Step 6: Final answer
x = 8,405,489.70
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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.