Finding the Fourth Proportional to 8,138,903,631.20, 12,211,540,496.40 and 2,969,568,130.40
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Solution
The fourth proportional to 8,138,903,631.20, 12,211,540,496.40 and 2,969,568,130.40 is: 4,455,514,295.83
Step by Step Solution
- Step 1: Write the proportion equation
8,138,903,631.20 : 12,211,540,496.40 = 2,969,568,130.40 : x - Step 2: Convert to fraction form
8,138,903,631.20/12,211,540,496.40 = 2,969,568,130.40/x - Step 3: Cross multiply
8,138,903,631.20x = 12,211,540,496.40 × 2,969,568,130.40 - Step 4: Simplify right side
8,138,903,631.20x = 36,263,001,481,198,436,352 - Step 5: Solve for x
x = 36,263,001,481,198,436,352/8,138,903,631.20 - Step 6: Final answer
x = 4,455,514,295.83
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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.