Finding the Fourth Proportional to 3,960,441,037.80, 5,940,661,556.70 and 3,321,197,230.95
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Solution
The fourth proportional to 3,960,441,037.80, 5,940,661,556.70 and 3,321,197,230.95 is: 4,981,795,846.43
Step by Step Solution
- Step 1: Write the proportion equation
3,960,441,037.80 : 5,940,661,556.70 = 3,321,197,230.95 : x - Step 2: Convert to fraction form
3,960,441,037.80/5,940,661,556.70 = 3,321,197,230.95/x - Step 3: Cross multiply
3,960,441,037.80x = 5,940,661,556.70 × 3,321,197,230.95 - Step 4: Simplify right side
3,960,441,037.80x = 19,730,108,712,123,154,432 - Step 5: Solve for x
x = 19,730,108,712,123,154,432/3,960,441,037.80 - Step 6: Final answer
x = 4,981,795,846.43
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1.5x scale
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.