Finding the Fourth Proportional to 10,515,579.20, 15,760,927.20 and 4,450,299.20
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Solution
The fourth proportional to 10,515,579.20, 15,760,927.20 and 4,450,299.20 is: 6,670,183.39
Step by Step Solution
- Step 1: Write the proportion equation
10,515,579.20 : 15,760,927.20 = 4,450,299.20 : x - Step 2: Convert to fraction form
10,515,579.20/15,760,927.20 = 4,450,299.20/x - Step 3: Cross multiply
10,515,579.20x = 15,760,927.20 × 4,450,299.20 - Step 4: Simplify right side
10,515,579.20x = 70,140,841,709,418.24 - Step 5: Solve for x
x = 70,140,841,709,418.24/10,515,579.20 - Step 6: Final answer
x = 6,670,183.39
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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.