Finding the Fourth Proportional to 12,388,716.11, 18,577,295.02 and 4,713,789.53
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Solution
The fourth proportional to 12,388,716.11, 18,577,295.02 and 4,713,789.53 is: 7,068,485.39
Step by Step Solution
- Step 1: Write the proportion equation
12,388,716.11 : 18,577,295.02 = 4,713,789.53 : x - Step 2: Convert to fraction form
12,388,716.11/18,577,295.02 = 4,713,789.53/x - Step 3: Cross multiply
12,388,716.11x = 18,577,295.02 × 4,713,789.53 - Step 4: Simplify right side
12,388,716.11x = 87,569,458,795,655.89 - Step 5: Solve for x
x = 87,569,458,795,655.89/12,388,716.11 - Step 6: Final answer
x = 7,068,485.39
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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.