Finding the Fourth Proportional to 125,686,571.06, 173,444,749.50 and 72,765,510.44
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Solution
The fourth proportional to 125,686,571.06, 173,444,749.50 and 72,765,510.44 is: 100,414,830.50
Step by Step Solution
- Step 1: Write the proportion equation
125,686,571.06 : 173,444,749.50 = 72,765,510.44 : x - Step 2: Convert to fraction form
125,686,571.06/173,444,749.50 = 72,765,510.44/x - Step 3: Cross multiply
125,686,571.06x = 173,444,749.50 × 72,765,510.44 - Step 4: Simplify right side
125,686,571.06x = 12,620,795,729,911,082 - Step 5: Solve for x
x = 12,620,795,729,911,082/125,686,571.06 - Step 6: Final answer
x = 100,414,830.50
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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.