Finding the Fourth Proportional to 125,686,578.07, 173,444,759.16 and 72,765,517.45
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Solution
The fourth proportional to 125,686,578.07, 173,444,759.16 and 72,765,517.45 is: 100,414,840.18
Step by Step Solution
- Step 1: Write the proportion equation
125,686,578.07 : 173,444,759.16 = 72,765,517.45 : x - Step 2: Convert to fraction form
125,686,578.07/173,444,759.16 = 72,765,517.45/x - Step 3: Cross multiply
125,686,578.07x = 173,444,759.16 × 72,765,517.45 - Step 4: Simplify right side
125,686,578.07x = 12,620,797,649,268,028 - Step 5: Solve for x
x = 12,620,797,649,268,028/125,686,578.07 - Step 6: Final answer
x = 100,414,840.18
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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.