Finding the Fourth Proportional to 2,825,204,628.22, 3,899,474,342.97 and 2,188,866,475.03
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Solution
The fourth proportional to 2,825,204,628.22, 3,899,474,342.97 and 2,188,866,475.03 is: 3,021,171,838.07
Step by Step Solution
- Step 1: Write the proportion equation
2,825,204,628.22 : 3,899,474,342.97 = 2,188,866,475.03 : x - Step 2: Convert to fraction form
2,825,204,628.22/3,899,474,342.97 = 2,188,866,475.03/x - Step 3: Cross multiply
2,825,204,628.22x = 3,899,474,342.97 × 2,188,866,475.03 - Step 4: Simplify right side
2,825,204,628.22x = 8,535,428,659,566,669,824 - Step 5: Solve for x
x = 8,535,428,659,566,669,824/2,825,204,628.22 - Step 6: Final answer
x = 3,021,171,838.07
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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.