Finding the Fourth Proportional to 7,793,999.20, 11,691,266.10 and 2,402,606.80
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Solution
The fourth proportional to 7,793,999.20, 11,691,266.10 and 2,402,606.80 is: 3,603,992.60
Step by Step Solution
- Step 1: Write the proportion equation
7,793,999.20 : 11,691,266.10 = 2,402,606.80 : x - Step 2: Convert to fraction form
7,793,999.20/11,691,266.10 = 2,402,606.80/x - Step 3: Cross multiply
7,793,999.20x = 11,691,266.10 × 2,402,606.80 - Step 4: Simplify right side
7,793,999.20x = 28,089,515,432,469.48 - Step 5: Solve for x
x = 28,089,515,432,469.48/7,793,999.20 - Step 6: Final answer
x = 3,603,992.60
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1.5x scale
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.