Finding the Fourth Proportional to 5,134,555.28, 7,085,947.56 and 2,842,968.08
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Solution
The fourth proportional to 5,134,555.28, 7,085,947.56 and 2,842,968.08 is: 3,923,440.62
Step by Step Solution
- Step 1: Write the proportion equation
5,134,555.28 : 7,085,947.56 = 2,842,968.08 : x - Step 2: Convert to fraction form
5,134,555.28/7,085,947.56 = 2,842,968.08/x - Step 3: Cross multiply
5,134,555.28x = 7,085,947.56 × 2,842,968.08 - Step 4: Simplify right side
5,134,555.28x = 20,145,122,729,633.88 - Step 5: Solve for x
x = 20,145,122,729,633.88/5,134,555.28 - Step 6: Final answer
x = 3,923,440.62
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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.