Finding the Fourth Proportional to 5,142,238.68, 7,096,135.74 and 2,819,051.76
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Solution
The fourth proportional to 5,142,238.68, 7,096,135.74 and 2,819,051.76 is: 3,890,207.20
Step by Step Solution
- Step 1: Write the proportion equation
5,142,238.68 : 7,096,135.74 = 2,819,051.76 : x - Step 2: Convert to fraction form
5,142,238.68/7,096,135.74 = 2,819,051.76/x - Step 3: Cross multiply
5,142,238.68x = 7,096,135.74 × 2,819,051.76 - Step 4: Simplify right side
5,142,238.68x = 20,004,373,947,045.90 - Step 5: Solve for x
x = 20,004,373,947,045.90/5,142,238.68 - Step 6: Final answer
x = 3,890,207.20
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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.