Finding the Fourth Proportional to 5,493,139.20, 8,239,708.80 and 1,449,619.20
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Solution
The fourth proportional to 5,493,139.20, 8,239,708.80 and 1,449,619.20 is: 2,174,428.80
Step by Step Solution
- Step 1: Write the proportion equation
5,493,139.20 : 8,239,708.80 = 1,449,619.20 : x - Step 2: Convert to fraction form
5,493,139.20/8,239,708.80 = 1,449,619.20/x - Step 3: Cross multiply
5,493,139.20x = 8,239,708.80 × 1,449,619.20 - Step 4: Simplify right side
5,493,139.20x = 11,944,440,078,888.96 - Step 5: Solve for x
x = 11,944,440,078,888.96/5,493,139.20 - Step 6: Final answer
x = 2,174,428.80
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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.