Finding the Fourth Proportional to 5,330,027.79, 7,355,438.35 and 2,882,638.82
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Solution
The fourth proportional to 5,330,027.79, 7,355,438.35 and 2,882,638.82 is: 3,978,041.57
Step by Step Solution
- Step 1: Write the proportion equation
5,330,027.79 : 7,355,438.35 = 2,882,638.82 : x - Step 2: Convert to fraction form
5,330,027.79/7,355,438.35 = 2,882,638.82/x - Step 3: Cross multiply
5,330,027.79x = 7,355,438.35 × 2,882,638.82 - Step 4: Simplify right side
5,330,027.79x = 21,203,072,074,636.36 - Step 5: Solve for x
x = 21,203,072,074,636.36/5,330,027.79 - Step 6: Final answer
x = 3,978,041.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.