Finding the Fourth Proportional to 12,067,967.20, 18,101,950.80 and 4,089,791.20
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Solution
The fourth proportional to 12,067,967.20, 18,101,950.80 and 4,089,791.20 is: 6,134,686.80
Step by Step Solution
- Step 1: Write the proportion equation
12,067,967.20 : 18,101,950.80 = 4,089,791.20 : x - Step 2: Convert to fraction form
12,067,967.20/18,101,950.80 = 4,089,791.20/x - Step 3: Cross multiply
12,067,967.20x = 18,101,950.80 × 4,089,791.20 - Step 4: Simplify right side
12,067,967.20x = 74,033,199,084,672.97 - Step 5: Solve for x
x = 74,033,199,084,672.97/12,067,967.20 - Step 6: Final answer
x = 6,134,686.80
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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.