Finding the Fourth Proportional to 18,028,747.08, 24,879,757.60 and 9,768,807.20
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Solution
The fourth proportional to 18,028,747.08, 24,879,757.60 and 9,768,807.20 is: 13,481,000.88
Step by Step Solution
- Step 1: Write the proportion equation
18,028,747.08 : 24,879,757.60 = 9,768,807.20 : x - Step 2: Convert to fraction form
18,028,747.08/24,879,757.60 = 9,768,807.20/x - Step 3: Cross multiply
18,028,747.08x = 24,879,757.60 × 9,768,807.20 - Step 4: Simplify right side
18,028,747.08x = 243,045,555,177,134.72 - Step 5: Solve for x
x = 243,045,555,177,134.72/18,028,747.08 - Step 6: Final answer
x = 13,481,000.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.