Finding the Fourth Proportional to 5,138,828.48, 7,091,303.84 and 2,846,852.48
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Solution
The fourth proportional to 5,138,828.48, 7,091,303.84 and 2,846,852.48 is: 3,928,501.60
Step by Step Solution
- Step 1: Write the proportion equation
5,138,828.48 : 7,091,303.84 = 2,846,852.48 : x - Step 2: Convert to fraction form
5,138,828.48/7,091,303.84 = 2,846,852.48/x - Step 3: Cross multiply
5,138,828.48x = 7,091,303.84 × 2,846,852.48 - Step 4: Simplify right side
5,138,828.48x = 20,187,895,923,337.52 - Step 5: Solve for x
x = 20,187,895,923,337.52/5,138,828.48 - Step 6: Final answer
x = 3,928,501.60
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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.