Finding the Fourth Proportional to 18,008,572.81, 27,008,816.30 and 8,283,846.05
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Solution
The fourth proportional to 18,008,572.81, 27,008,816.30 and 8,283,846.05 is: 12,423,909.36
Step by Step Solution
- Step 1: Write the proportion equation
18,008,572.81 : 27,008,816.30 = 8,283,846.05 : x - Step 2: Convert to fraction form
18,008,572.81/27,008,816.30 = 8,283,846.05/x - Step 3: Cross multiply
18,008,572.81x = 27,008,816.30 × 8,283,846.05 - Step 4: Simplify right side
18,008,572.81x = 223,736,876,353,033.56 - Step 5: Solve for x
x = 223,736,876,353,033.56/18,008,572.81 - Step 6: Final answer
x = 12,423,909.36
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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.