Finding the Fourth Proportional to 12,618,129.53, 18,930,583.40 and 3,982,563.87
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Solution
The fourth proportional to 12,618,129.53, 18,930,583.40 and 3,982,563.87 is: 5,974,915.48
Step by Step Solution
- Step 1: Write the proportion equation
12,618,129.53 : 18,930,583.40 = 3,982,563.87 : x - Step 2: Convert to fraction form
12,618,129.53/18,930,583.40 = 3,982,563.87/x - Step 3: Cross multiply
12,618,129.53x = 18,930,583.40 × 3,982,563.87 - Step 4: Simplify right side
12,618,129.53x = 75,392,257,466,948.94 - Step 5: Solve for x
x = 75,392,257,466,948.94/12,618,129.53 - Step 6: Final answer
x = 5,974,915.48
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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.