Finding the Fourth Proportional to 378,582,657.44, 522,449,143.46 and 213,569,716.64
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Solution
The fourth proportional to 378,582,657.44, 522,449,143.46 and 213,569,716.64 is: 294,729,072.59
Step by Step Solution
- Step 1: Write the proportion equation
378,582,657.44 : 522,449,143.46 = 213,569,716.64 : x - Step 2: Convert to fraction form
378,582,657.44/522,449,143.46 = 213,569,716.64/x - Step 3: Cross multiply
378,582,657.44x = 522,449,143.46 × 213,569,716.64 - Step 4: Simplify right side
378,582,657.44x = 111,579,315,527,562,896 - Step 5: Solve for x
x = 111,579,315,527,562,896/378,582,657.44 - Step 6: Final answer
x = 294,729,072.59
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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.