Finding the Fourth Proportional to 1,890,862,344.75, 2,836,676,172.41 and 664,126,455.63
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Solution
The fourth proportional to 1,890,862,344.75, 2,836,676,172.41 and 664,126,455.63 is: 996,324,083.23
Step by Step Solution
- Step 1: Write the proportion equation
1,890,862,344.75 : 2,836,676,172.41 = 664,126,455.63 : x - Step 2: Convert to fraction form
1,890,862,344.75/2,836,676,172.41 = 664,126,455.63/x - Step 3: Cross multiply
1,890,862,344.75x = 2,836,676,172.41 × 664,126,455.63 - Step 4: Simplify right side
1,890,862,344.75x = 1,883,911,692,154,454,784 - Step 5: Solve for x
x = 1,883,911,692,154,454,784/1,890,862,344.75 - Step 6: Final answer
x = 996,324,083.23
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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.