Finding the Fourth Proportional to 7,811,088.64, 11,717,745.86 and 2,420,162.80
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Solution
The fourth proportional to 7,811,088.64, 11,717,745.86 and 2,420,162.80 is: 3,630,589.02
Step by Step Solution
- Step 1: Write the proportion equation
7,811,088.64 : 11,717,745.86 = 2,420,162.80 : x - Step 2: Convert to fraction form
7,811,088.64/11,717,745.86 = 2,420,162.80/x - Step 3: Cross multiply
7,811,088.64x = 11,717,745.86 × 2,420,162.80 - Step 4: Simplify right side
7,811,088.64x = 28,358,852,606,982.05 - Step 5: Solve for x
x = 28,358,852,606,982.05/7,811,088.64 - Step 6: Final answer
x = 3,630,589.02
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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.