Finding the Fourth Proportional to 12,147,619.99, 18,234,037.87 and 7,040,029.11
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Solution
The fourth proportional to 12,147,619.99, 18,234,037.87 and 7,040,029.11 is: 10,567,350.44
Step by Step Solution
- Step 1: Write the proportion equation
12,147,619.99 : 18,234,037.87 = 7,040,029.11 : x - Step 2: Convert to fraction form
12,147,619.99/18,234,037.87 = 7,040,029.11/x - Step 3: Cross multiply
12,147,619.99x = 18,234,037.87 × 7,040,029.11 - Step 4: Simplify right side
12,147,619.99x = 128,368,157,397,642.41 - Step 5: Solve for x
x = 128,368,157,397,642.41/12,147,619.99 - Step 6: Final answer
x = 10,567,350.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.