Finding the Fourth Proportional to 5,412,385.36, 7,467,272.20 and 3,120,496.08
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Solution
The fourth proportional to 5,412,385.36, 7,467,272.20 and 3,120,496.08 is: 4,305,235.51
Step by Step Solution
- Step 1: Write the proportion equation
5,412,385.36 : 7,467,272.20 = 3,120,496.08 : x - Step 2: Convert to fraction form
5,412,385.36/7,467,272.20 = 3,120,496.08/x - Step 3: Cross multiply
5,412,385.36x = 7,467,272.20 × 3,120,496.08 - Step 4: Simplify right side
5,412,385.36x = 23,301,593,628,392.98 - Step 5: Solve for x
x = 23,301,593,628,392.98/5,412,385.36 - Step 6: Final answer
x = 4,305,235.51
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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.