Finding the Fourth Proportional to 1,908,944,786.75, 2,863,829,324.84 and 581,076,661.40
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Solution
The fourth proportional to 1,908,944,786.75, 2,863,829,324.84 and 581,076,661.40 is: 871,740,447.62
Step by Step Solution
- Step 1: Write the proportion equation
1,908,944,786.75 : 2,863,829,324.84 = 581,076,661.40 : x - Step 2: Convert to fraction form
1,908,944,786.75/2,863,829,324.84 = 581,076,661.40/x - Step 3: Cross multiply
1,908,944,786.75x = 2,863,829,324.84 × 581,076,661.40 - Step 4: Simplify right side
1,908,944,786.75x = 1,664,104,382,880,218,624 - Step 5: Solve for x
x = 1,664,104,382,880,218,624/1,908,944,786.75 - Step 6: Final answer
x = 871,740,447.62
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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.