Finding the Fourth Proportional to 13,529,729.25, 20,292,433.70 and 3,942,865.53
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Solution
The fourth proportional to 13,529,729.25, 20,292,433.70 and 3,942,865.53 is: 5,913,668.77
Step by Step Solution
- Step 1: Write the proportion equation
13,529,729.25 : 20,292,433.70 = 3,942,865.53 : x - Step 2: Convert to fraction form
13,529,729.25/20,292,433.70 = 3,942,865.53/x - Step 3: Cross multiply
13,529,729.25x = 20,292,433.70 × 3,942,865.53 - Step 4: Simplify right side
13,529,729.25x = 80,010,337,335,826.03 - Step 5: Solve for x
x = 80,010,337,335,826.03/13,529,729.25 - Step 6: Final answer
x = 5,913,668.77
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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.