Finding the Fourth Proportional to 12,388,534.80, 18,567,055.80 and 5,984,998.80
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Solution
The fourth proportional to 12,388,534.80, 18,567,055.80 and 5,984,998.80 is: 8,969,890.99
Step by Step Solution
- Step 1: Write the proportion equation
12,388,534.80 : 18,567,055.80 = 5,984,998.80 : x - Step 2: Convert to fraction form
12,388,534.80/18,567,055.80 = 5,984,998.80/x - Step 3: Cross multiply
12,388,534.80x = 18,567,055.80 × 5,984,998.80 - Step 4: Simplify right side
12,388,534.80x = 111,123,806,682,533.05 - Step 5: Solve for x
x = 111,123,806,682,533.05/12,388,534.80 - Step 6: Final answer
x = 8,969,890.99
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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.