Finding the Fourth Proportional to 5,214,496.80, 7,821,745.20 and 1,848,266.40
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Solution
The fourth proportional to 5,214,496.80, 7,821,745.20 and 1,848,266.40 is: 2,772,399.60
Step by Step Solution
- Step 1: Write the proportion equation
5,214,496.80 : 7,821,745.20 = 1,848,266.40 : x - Step 2: Convert to fraction form
5,214,496.80/7,821,745.20 = 1,848,266.40/x - Step 3: Cross multiply
5,214,496.80x = 7,821,745.20 × 1,848,266.40 - Step 4: Simplify right side
5,214,496.80x = 14,456,668,842,521.28 - Step 5: Solve for x
x = 14,456,668,842,521.28/5,214,496.80 - Step 6: Final answer
x = 2,772,399.60
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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.