Finding the Fourth Proportional to 4,740,134.11, 7,107,211.79 and 2,611,712.90
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Solution
The fourth proportional to 4,740,134.11, 7,107,211.79 and 2,611,712.90 is: 3,915,922.27
Step by Step Solution
- Step 1: Write the proportion equation
4,740,134.11 : 7,107,211.79 = 2,611,712.90 : x - Step 2: Convert to fraction form
4,740,134.11/7,107,211.79 = 2,611,712.90/x - Step 3: Cross multiply
4,740,134.11x = 7,107,211.79 × 2,611,712.90 - Step 4: Simplify right side
4,740,134.11x = 18,561,996,729,478.48 - Step 5: Solve for x
x = 18,561,996,729,478.48/4,740,134.11 - Step 6: Final answer
x = 3,915,922.27
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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.