Finding the Fourth Proportional to 5,228,822.88, 7,215,618.36 and 2,905,707.60
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Solution
The fourth proportional to 5,228,822.88, 7,215,618.36 and 2,905,707.60 is: 4,009,789.12
Step by Step Solution
- Step 1: Write the proportion equation
5,228,822.88 : 7,215,618.36 = 2,905,707.60 : x - Step 2: Convert to fraction form
5,228,822.88/7,215,618.36 = 2,905,707.60/x - Step 3: Cross multiply
5,228,822.88x = 7,215,618.36 × 2,905,707.60 - Step 4: Simplify right side
5,228,822.88x = 20,966,477,107,351.54 - Step 5: Solve for x
x = 20,966,477,107,351.54/5,228,822.88 - Step 6: Final answer
x = 4,009,789.12
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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.