Finding the Fourth Proportional to 5,209,291.24, 7,188,728.64 and 2,886,137.12
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Solution
The fourth proportional to 5,209,291.24, 7,188,728.64 and 2,886,137.12 is: 3,982,817.55
Step by Step Solution
- Step 1: Write the proportion equation
5,209,291.24 : 7,188,728.64 = 2,886,137.12 : x - Step 2: Convert to fraction form
5,209,291.24/7,188,728.64 = 2,886,137.12/x - Step 3: Cross multiply
5,209,291.24x = 7,188,728.64 × 2,886,137.12 - Step 4: Simplify right side
5,209,291.24x = 20,747,656,573,511.12 - Step 5: Solve for x
x = 20,747,656,573,511.12/5,209,291.24 - Step 6: Final answer
x = 3,982,817.55
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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.