Finding the Fourth Proportional to 395,612,132.40, 593,418,198.60 and 202,120,369.20
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Solution
The fourth proportional to 395,612,132.40, 593,418,198.60 and 202,120,369.20 is: 303,180,553.80
Step by Step Solution
- Step 1: Write the proportion equation
395,612,132.40 : 593,418,198.60 = 202,120,369.20 : x - Step 2: Convert to fraction form
395,612,132.40/593,418,198.60 = 202,120,369.20/x - Step 3: Cross multiply
395,612,132.40x = 593,418,198.60 × 202,120,369.20 - Step 4: Simplify right side
395,612,132.40x = 119,941,905,391,030,928 - Step 5: Solve for x
x = 119,941,905,391,030,928/395,612,132.40 - Step 6: Final answer
x = 303,180,553.80
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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.