Finding the Fourth Proportional to 5,559,295.20, 8,338,942.80 and 3,789,823.20
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Solution
The fourth proportional to 5,559,295.20, 8,338,942.80 and 3,789,823.20 is: 5,684,734.80
Step by Step Solution
- Step 1: Write the proportion equation
5,559,295.20 : 8,338,942.80 = 3,789,823.20 : x - Step 2: Convert to fraction form
5,559,295.20/8,338,942.80 = 3,789,823.20/x - Step 3: Cross multiply
5,559,295.20x = 8,338,942.80 × 3,789,823.20 - Step 4: Simplify right side
5,559,295.20x = 31,603,118,886,912.96 - Step 5: Solve for x
x = 31,603,118,886,912.96/5,559,295.20 - Step 6: Final answer
x = 5,684,734.80
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Double scale
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Similar ratio
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1.5x scale
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.