Finding the Fourth Proportional to 7,381,803.10, 11,072,704.65 and 4,193,157.10
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Solution
The fourth proportional to 7,381,803.10, 11,072,704.65 and 4,193,157.10 is: 6,289,735.65
Step by Step Solution
- Step 1: Write the proportion equation
7,381,803.10 : 11,072,704.65 = 4,193,157.10 : x - Step 2: Convert to fraction form
7,381,803.10/11,072,704.65 = 4,193,157.10/x - Step 3: Cross multiply
7,381,803.10x = 11,072,704.65 × 4,193,157.10 - Step 4: Simplify right side
7,381,803.10x = 46,429,590,119,350.52 - Step 5: Solve for x
x = 46,429,590,119,350.52/7,381,803.10 - Step 6: Final answer
x = 6,289,735.65
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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.