Finding the Fourth Proportional to 20,410,082,918.97, 28,167,591,108.78 and 11,256,401,985.99
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Solution
The fourth proportional to 20,410,082,918.97, 28,167,591,108.78 and 11,256,401,985.99 is: 15,534,759,449.84
Step by Step Solution
- Step 1: Write the proportion equation
20,410,082,918.97 : 28,167,591,108.78 = 11,256,401,985.99 : x - Step 2: Convert to fraction form
20,410,082,918.97/28,167,591,108.78 = 11,256,401,985.99/x - Step 3: Cross multiply
20,410,082,918.97x = 28,167,591,108.78 × 11,256,401,985.99 - Step 4: Simplify right side
20,410,082,918.97x = 317,065,728,497,425,448,960 - Step 5: Solve for x
x = 317,065,728,497,425,448,960/20,410,082,918.97 - Step 6: Final answer
x = 15,534,759,449.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.