Finding the Fourth Proportional to 3,155,306,978.07, 4,354,327,868.58 and 1,726,512,321.87
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Solution
The fourth proportional to 3,155,306,978.07, 4,354,327,868.58 and 1,726,512,321.87 is: 2,382,589,323.58
Step by Step Solution
- Step 1: Write the proportion equation
3,155,306,978.07 : 4,354,327,868.58 = 1,726,512,321.87 : x - Step 2: Convert to fraction form
3,155,306,978.07/4,354,327,868.58 = 1,726,512,321.87/x - Step 3: Cross multiply
3,155,306,978.07x = 4,354,327,868.58 × 1,726,512,321.87 - Step 4: Simplify right side
3,155,306,978.07x = 7,517,800,718,565,303,296 - Step 5: Solve for x
x = 7,517,800,718,565,303,296/3,155,306,978.07 - Step 6: Final answer
x = 2,382,589,323.58
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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.