Finding the Fourth Proportional to 12,193,943.19, 18,289,134.21 and 3,555,722.40
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Solution
The fourth proportional to 12,193,943.19, 18,289,134.21 and 3,555,722.40 is: 5,333,064.39
Step by Step Solution
- Step 1: Write the proportion equation
12,193,943.19 : 18,289,134.21 = 3,555,722.40 : x - Step 2: Convert to fraction form
12,193,943.19/18,289,134.21 = 3,555,722.40/x - Step 3: Cross multiply
12,193,943.19x = 18,289,134.21 × 3,555,722.40 - Step 4: Simplify right side
12,193,943.19x = 65,031,084,187,103.30 - Step 5: Solve for x
x = 65,031,084,187,103.30/12,193,943.19 - Step 6: Final answer
x = 5,333,064.39
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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.