Finding the Fourth Proportional to 7,380,919.68, 11,074,575.78 and 3,965,220.96
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Solution
The fourth proportional to 7,380,919.68, 11,074,575.78 and 3,965,220.96 is: 5,949,548.55
Step by Step Solution
- Step 1: Write the proportion equation
7,380,919.68 : 11,074,575.78 = 3,965,220.96 : x - Step 2: Convert to fraction form
7,380,919.68/11,074,575.78 = 3,965,220.96/x - Step 3: Cross multiply
7,380,919.68x = 11,074,575.78 × 3,965,220.96 - Step 4: Simplify right side
7,380,919.68x = 43,913,140,005,964.34 - Step 5: Solve for x
x = 43,913,140,005,964.34/7,380,919.68 - Step 6: Final answer
x = 5,949,548.55
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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.