Finding the Fourth Proportional to 22,049,485.20, 33,011,242.20 and 19,782,003.60
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Solution
The fourth proportional to 22,049,485.20, 33,011,242.20 and 19,782,003.60 is: 29,616,496.99
Step by Step Solution
- Step 1: Write the proportion equation
22,049,485.20 : 33,011,242.20 = 19,782,003.60 : x - Step 2: Convert to fraction form
22,049,485.20/33,011,242.20 = 19,782,003.60/x - Step 3: Cross multiply
22,049,485.20x = 33,011,242.20 × 19,782,003.60 - Step 4: Simplify right side
22,049,485.20x = 653,028,512,040,872 - Step 5: Solve for x
x = 653,028,512,040,872/22,049,485.20 - Step 6: Final answer
x = 29,616,496.99
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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.