Finding the Fourth Proportional to 7,138,469.80, 10,707,704.40 and 2,089,780.28
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Solution
The fourth proportional to 7,138,469.80, 10,707,704.40 and 2,089,780.28 is: 3,134,670.33
Step by Step Solution
- Step 1: Write the proportion equation
7,138,469.80 : 10,707,704.40 = 2,089,780.28 : x - Step 2: Convert to fraction form
7,138,469.80/10,707,704.40 = 2,089,780.28/x - Step 3: Cross multiply
7,138,469.80x = 10,707,704.40 × 2,089,780.28 - Step 4: Simplify right side
7,138,469.80x = 22,376,749,499,189.23 - Step 5: Solve for x
x = 22,376,749,499,189.23/7,138,469.80 - Step 6: Final answer
x = 3,134,670.33
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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.