Finding the Fourth Proportional to 18,162,397.80, 27,230,037.30 and 10,972,416.60
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Solution
The fourth proportional to 18,162,397.80, 27,230,037.30 and 10,972,416.60 is: 16,450,433.28
Step by Step Solution
- Step 1: Write the proportion equation
18,162,397.80 : 27,230,037.30 = 10,972,416.60 : x - Step 2: Convert to fraction form
18,162,397.80/27,230,037.30 = 10,972,416.60/x - Step 3: Cross multiply
18,162,397.80x = 27,230,037.30 × 10,972,416.60 - Step 4: Simplify right side
18,162,397.80x = 298,779,313,289,139.19 - Step 5: Solve for x
x = 298,779,313,289,139.19/18,162,397.80 - Step 6: Final answer
x = 16,450,433.28
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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.