Finding the Fourth Proportional to 3,823,347,761.57, 5,275,519,496.17 and 2,129,760,260.21
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Solution
The fourth proportional to 3,823,347,761.57, 5,275,519,496.17 and 2,129,760,260.21 is: 2,938,678,999.55
Step by Step Solution
- Step 1: Write the proportion equation
3,823,347,761.57 : 5,275,519,496.17 = 2,129,760,260.21 : x - Step 2: Convert to fraction form
3,823,347,761.57/5,275,519,496.17 = 2,129,760,260.21/x - Step 3: Cross multiply
3,823,347,761.57x = 5,275,519,496.17 × 2,129,760,260.21 - Step 4: Simplify right side
3,823,347,761.57x = 11,235,591,774,913,810,432 - Step 5: Solve for x
x = 11,235,591,774,913,810,432/3,823,347,761.57 - Step 6: Final answer
x = 2,938,678,999.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.