Finding the Fourth Proportional to 45,874,620.40, 68,811,930.60 and 18,593,982.40
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Solution
The fourth proportional to 45,874,620.40, 68,811,930.60 and 18,593,982.40 is: 27,890,973.60
Step by Step Solution
- Step 1: Write the proportion equation
45,874,620.40 : 68,811,930.60 = 18,593,982.40 : x - Step 2: Convert to fraction form
45,874,620.40/68,811,930.60 = 18,593,982.40/x - Step 3: Cross multiply
45,874,620.40x = 68,811,930.60 × 18,593,982.40 - Step 4: Simplify right side
45,874,620.40x = 1,279,487,826,486,421.25 - Step 5: Solve for x
x = 1,279,487,826,486,421.25/45,874,620.40 - Step 6: Final answer
x = 27,890,973.60
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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.