Finding the Fourth Proportional to 392,202,418.80, 587,028,169.80 and 305,471,247.60
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Solution
The fourth proportional to 392,202,418.80, 587,028,169.80 and 305,471,247.60 is: 457,213,466.34
Step by Step Solution
- Step 1: Write the proportion equation
392,202,418.80 : 587,028,169.80 = 305,471,247.60 : x - Step 2: Convert to fraction form
392,202,418.80/587,028,169.80 = 305,471,247.60/x - Step 3: Cross multiply
392,202,418.80x = 587,028,169.80 × 305,471,247.60 - Step 4: Simplify right side
392,202,418.80x = 179,320,227,405,150,656 - Step 5: Solve for x
x = 179,320,227,405,150,656/392,202,418.80 - Step 6: Final answer
x = 457,213,466.34
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.