Finding the Fourth Proportional to 7,474,840.05, 10,471,861.95 and 7,474,840.05
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Solution
The fourth proportional to 7,474,840.05, 10,471,861.95 and 7,474,840.05 is: 10,471,861.95
Step by Step Solution
- Step 1: Write the proportion equation
7,474,840.05 : 10,471,861.95 = 7,474,840.05 : x - Step 2: Convert to fraction form
7,474,840.05/10,471,861.95 = 7,474,840.05/x - Step 3: Cross multiply
7,474,840.05x = 10,471,861.95 × 7,474,840.05 - Step 4: Simplify right side
7,474,840.05x = 78,275,493,101,931.09 - Step 5: Solve for x
x = 78,275,493,101,931.09/7,474,840.05 - Step 6: Final answer
x = 10,471,861.95
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.