Finding the Fourth Proportional to 18,783,065.70, 28,174,598.55 and 6,811,481.70
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Solution
The fourth proportional to 18,783,065.70, 28,174,598.55 and 6,811,481.70 is: 10,217,222.55
Step by Step Solution
- Step 1: Write the proportion equation
18,783,065.70 : 28,174,598.55 = 6,811,481.70 : x - Step 2: Convert to fraction form
18,783,065.70/28,174,598.55 = 6,811,481.70/x - Step 3: Cross multiply
18,783,065.70x = 28,174,598.55 × 6,811,481.70 - Step 4: Simplify right side
18,783,065.70x = 191,910,762,428,171.53 - Step 5: Solve for x
x = 191,910,762,428,171.53/18,783,065.70 - Step 6: Final answer
x = 10,217,222.55
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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.