Finding the Fourth Proportional to 81,874,793.95, 122,850,542.25 and 40,353,035.13
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Solution
The fourth proportional to 81,874,793.95, 122,850,542.25 and 40,353,035.13 is: 60,548,454.64
Step by Step Solution
- Step 1: Write the proportion equation
81,874,793.95 : 122,850,542.25 = 40,353,035.13 : x - Step 2: Convert to fraction form
81,874,793.95/122,850,542.25 = 40,353,035.13/x - Step 3: Cross multiply
81,874,793.95x = 122,850,542.25 × 40,353,035.13 - Step 4: Simplify right side
81,874,793.95x = 4,957,392,247,270,033 - Step 5: Solve for x
x = 4,957,392,247,270,033/81,874,793.95 - Step 6: Final answer
x = 60,548,454.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.