Finding the Fourth Proportional to 7,447,671.21, 10,282,371.60 and 5,905,163.70
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Solution
The fourth proportional to 7,447,671.21, 10,282,371.60 and 5,905,163.70 is: 8,152,761.56
Step by Step Solution
- Step 1: Write the proportion equation
7,447,671.21 : 10,282,371.60 = 5,905,163.70 : x - Step 2: Convert to fraction form
7,447,671.21/10,282,371.60 = 5,905,163.70/x - Step 3: Cross multiply
7,447,671.21x = 10,282,371.60 × 5,905,163.70 - Step 4: Simplify right side
7,447,671.21x = 60,719,087,522,230.92 - Step 5: Solve for x
x = 60,719,087,522,230.92/7,447,671.21 - Step 6: Final answer
x = 8,152,761.56
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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.