Finding the Fourth Proportional to 18,007,439.97, 27,013,485.12 and 8,289,709.19
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Solution
The fourth proportional to 18,007,439.97, 27,013,485.12 and 8,289,709.19 is: 12,435,634.17
Step by Step Solution
- Step 1: Write the proportion equation
18,007,439.97 : 27,013,485.12 = 8,289,709.19 : x - Step 2: Convert to fraction form
18,007,439.97/27,013,485.12 = 8,289,709.19/x - Step 3: Cross multiply
18,007,439.97x = 27,013,485.12 × 8,289,709.19 - Step 4: Simplify right side
18,007,439.97x = 223,933,935,788,339 - Step 5: Solve for x
x = 223,933,935,788,339/18,007,439.97 - Step 6: Final answer
x = 12,435,634.17
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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.