Finding the Fourth Proportional to 10,879,197.20, 16,322,813.40 and 4,490,003.60
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Solution
The fourth proportional to 10,879,197.20, 16,322,813.40 and 4,490,003.60 is: 6,736,663.52
Step by Step Solution
- Step 1: Write the proportion equation
10,879,197.20 : 16,322,813.40 = 4,490,003.60 : x - Step 2: Convert to fraction form
10,879,197.20/16,322,813.40 = 4,490,003.60/x - Step 3: Cross multiply
10,879,197.20x = 16,322,813.40 × 4,490,003.60 - Step 4: Simplify right side
10,879,197.20x = 73,289,490,928,128.23 - Step 5: Solve for x
x = 73,289,490,928,128.23/10,879,197.20 - Step 6: Final answer
x = 6,736,663.52
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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.