Finding the Fourth Proportional to 20,512,243.80, 30,754,697.94 and 11,294,556.84
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Solution
The fourth proportional to 20,512,243.80, 30,754,697.94 and 11,294,556.84 is: 16,934,309.45
Step by Step Solution
- Step 1: Write the proportion equation
20,512,243.80 : 30,754,697.94 = 11,294,556.84 : x - Step 2: Convert to fraction form
20,512,243.80/30,754,697.94 = 11,294,556.84/x - Step 3: Cross multiply
20,512,243.80x = 30,754,697.94 × 11,294,556.84 - Step 4: Simplify right side
20,512,243.80x = 347,360,683,980,360.94 - Step 5: Solve for x
x = 347,360,683,980,360.94/20,512,243.80 - Step 6: Final answer
x = 16,934,309.45
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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.