Finding the Fourth Proportional to 3,396,745,858.99, 5,093,414,128.87 and 1,979,101,128.17
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Solution
The fourth proportional to 3,396,745,858.99, 5,093,414,128.87 and 1,979,101,128.17 is: 2,967,658,478.78
Step by Step Solution
- Step 1: Write the proportion equation
3,396,745,858.99 : 5,093,414,128.87 = 1,979,101,128.17 : x - Step 2: Convert to fraction form
3,396,745,858.99/5,093,414,128.87 = 1,979,101,128.17/x - Step 3: Cross multiply
3,396,745,858.99x = 5,093,414,128.87 × 1,979,101,128.17 - Step 4: Simplify right side
3,396,745,858.99x = 10,080,381,648,682,106,880 - Step 5: Solve for x
x = 10,080,381,648,682,106,880/3,396,745,858.99 - Step 6: Final answer
x = 2,967,658,478.78
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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.