Finding the Fourth Proportional to 18,443,338.80, 27,682,722.90 and 9,355,697.70
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Solution
The fourth proportional to 18,443,338.80, 27,682,722.90 and 9,355,697.70 is: 14,042,532.63
Step by Step Solution
- Step 1: Write the proportion equation
18,443,338.80 : 27,682,722.90 = 9,355,697.70 : x - Step 2: Convert to fraction form
18,443,338.80/27,682,722.90 = 9,355,697.70/x - Step 3: Cross multiply
18,443,338.80x = 27,682,722.90 × 9,355,697.70 - Step 4: Simplify right side
18,443,338.80x = 258,991,186,965,267.28 - Step 5: Solve for x
x = 258,991,186,965,267.28/18,443,338.80 - Step 6: Final answer
x = 14,042,532.63
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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.