Finding the Fourth Proportional to 65,761,756.21, 90,747,531.18 and 35,992,343.63
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Solution
The fourth proportional to 65,761,756.21, 90,747,531.18 and 35,992,343.63 is: 49,667,413.32
Step by Step Solution
- Step 1: Write the proportion equation
65,761,756.21 : 90,747,531.18 = 35,992,343.63 : x - Step 2: Convert to fraction form
65,761,756.21/90,747,531.18 = 35,992,343.63/x - Step 3: Cross multiply
65,761,756.21x = 90,747,531.18 × 35,992,343.63 - Step 4: Simplify right side
65,761,756.21x = 3,266,216,325,994,945 - Step 5: Solve for x
x = 3,266,216,325,994,945/65,761,756.21 - Step 6: Final answer
x = 49,667,413.32
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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.