Finding the Fourth Proportional to 327,487,237.20, 491,230,855.80 and 174,432,229.20
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Solution
The fourth proportional to 327,487,237.20, 491,230,855.80 and 174,432,229.20 is: 261,648,343.80
Step by Step Solution
- Step 1: Write the proportion equation
327,487,237.20 : 491,230,855.80 = 174,432,229.20 : x - Step 2: Convert to fraction form
327,487,237.20/491,230,855.80 = 174,432,229.20/x - Step 3: Cross multiply
327,487,237.20x = 491,230,855.80 × 174,432,229.20 - Step 4: Simplify right side
327,487,237.20x = 85,686,493,229,017,744 - Step 5: Solve for x
x = 85,686,493,229,017,744/327,487,237.20 - Step 6: Final answer
x = 261,648,343.80
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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.