Finding the Fourth Proportional to 20,212,766.40, 30,319,149.60 and 8,084,101.80
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Solution
The fourth proportional to 20,212,766.40, 30,319,149.60 and 8,084,101.80 is: 12,126,152.70
Step by Step Solution
- Step 1: Write the proportion equation
20,212,766.40 : 30,319,149.60 = 8,084,101.80 : x - Step 2: Convert to fraction form
20,212,766.40/30,319,149.60 = 8,084,101.80/x - Step 3: Cross multiply
20,212,766.40x = 30,319,149.60 × 8,084,101.80 - Step 4: Simplify right side
20,212,766.40x = 245,103,091,855,829.28 - Step 5: Solve for x
x = 245,103,091,855,829.28/20,212,766.40 - Step 6: Final answer
x = 12,126,152.70
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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.