Finding the Fourth Proportional to 7,811,089.64, 11,717,747.36 and 2,420,163.80
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Solution
The fourth proportional to 7,811,089.64, 11,717,747.36 and 2,420,163.80 is: 3,630,590.52
Step by Step Solution
- Step 1: Write the proportion equation
7,811,089.64 : 11,717,747.36 = 2,420,163.80 : x - Step 2: Convert to fraction form
7,811,089.64/11,717,747.36 = 2,420,163.80/x - Step 3: Cross multiply
7,811,089.64x = 11,717,747.36 × 2,420,163.80 - Step 4: Simplify right side
7,811,089.64x = 28,358,867,978,217.56 - Step 5: Solve for x
x = 28,358,867,978,217.56/7,811,089.64 - Step 6: Final answer
x = 3,630,590.52
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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.