Finding the Fourth Proportional to 7,811,102.59, 11,717,763.05 and 2,420,176.75
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Solution
The fourth proportional to 7,811,102.59, 11,717,763.05 and 2,420,176.75 is: 3,630,608.79
Step by Step Solution
- Step 1: Write the proportion equation
7,811,102.59 : 11,717,763.05 = 2,420,176.75 : x - Step 2: Convert to fraction form
7,811,102.59/11,717,763.05 = 2,420,176.75/x - Step 3: Cross multiply
7,811,102.59x = 11,717,763.05 × 2,420,176.75 - Step 4: Simplify right side
7,811,102.59x = 28,359,057,695,619.09 - Step 5: Solve for x
x = 28,359,057,695,619.09/7,811,102.59 - Step 6: Final answer
x = 3,630,608.79
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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.