Finding the Fourth Proportional to 13,899,138.21, 20,849,146.08 and 4,801,754.03
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Solution
The fourth proportional to 13,899,138.21, 20,849,146.08 and 4,801,754.03 is: 7,202,782.62
Step by Step Solution
- Step 1: Write the proportion equation
13,899,138.21 : 20,849,146.08 = 4,801,754.03 : x - Step 2: Convert to fraction form
13,899,138.21/20,849,146.08 = 4,801,754.03/x - Step 3: Cross multiply
13,899,138.21x = 20,849,146.08 × 4,801,754.03 - Step 4: Simplify right side
13,899,138.21x = 100,112,471,083,444.20 - Step 5: Solve for x
x = 100,112,471,083,444.20/13,899,138.21 - Step 6: Final answer
x = 7,202,782.62
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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.