Finding the Fourth Proportional to 1,393,100,409.22, 1,922,420,542.42 and 758,023,395.05
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Solution
The fourth proportional to 1,393,100,409.22, 1,922,420,542.42 and 758,023,395.05 is: 1,046,040,713.68
Step by Step Solution
- Step 1: Write the proportion equation
1,393,100,409.22 : 1,922,420,542.42 = 758,023,395.05 : x - Step 2: Convert to fraction form
1,393,100,409.22/1,922,420,542.42 = 758,023,395.05/x - Step 3: Cross multiply
1,393,100,409.22x = 1,922,420,542.42 × 758,023,395.05 - Step 4: Simplify right side
1,393,100,409.22x = 1,457,239,746,284,786,688 - Step 5: Solve for x
x = 1,457,239,746,284,786,688/1,393,100,409.22 - Step 6: Final answer
x = 1,046,040,713.68
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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.