Finding the Fourth Proportional to 522,263,133.28, 721,757,203.79 and 428,028,648.31
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Solution
The fourth proportional to 522,263,133.28, 721,757,203.79 and 428,028,648.31 is: 591,527,030.45
Step by Step Solution
- Step 1: Write the proportion equation
522,263,133.28 : 721,757,203.79 = 428,028,648.31 : x - Step 2: Convert to fraction form
522,263,133.28/721,757,203.79 = 428,028,648.31/x - Step 3: Cross multiply
522,263,133.28x = 721,757,203.79 × 428,028,648.31 - Step 4: Simplify right side
522,263,133.28x = 308,932,760,345,000,896 - Step 5: Solve for x
x = 308,932,760,345,000,896/522,263,133.28 - Step 6: Final answer
x = 591,527,030.45
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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.