Finding the Fourth Proportional to 5,740,212.60, 7,921,396.62 and 3,162,134.52
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Solution
The fourth proportional to 5,740,212.60, 7,921,396.62 and 3,162,134.52 is: 4,363,692.33
Step by Step Solution
- Step 1: Write the proportion equation
5,740,212.60 : 7,921,396.62 = 3,162,134.52 : x - Step 2: Convert to fraction form
5,740,212.60/7,921,396.62 = 3,162,134.52/x - Step 3: Cross multiply
5,740,212.60x = 7,921,396.62 × 3,162,134.52 - Step 4: Simplify right side
5,740,212.60x = 25,048,521,698,713.32 - Step 5: Solve for x
x = 25,048,521,698,713.32/5,740,212.60 - Step 6: Final answer
x = 4,363,692.33
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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.