Finding the Fourth Proportional to 5,178,440.26, 7,769,900.36 and 2,779,482.37
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Solution
The fourth proportional to 5,178,440.26, 7,769,900.36 and 2,779,482.37 is: 4,170,425.84
Step by Step Solution
- Step 1: Write the proportion equation
5,178,440.26 : 7,769,900.36 = 2,779,482.37 : x - Step 2: Convert to fraction form
5,178,440.26/7,769,900.36 = 2,779,482.37/x - Step 3: Cross multiply
5,178,440.26x = 7,769,900.36 × 2,779,482.37 - Step 4: Simplify right side
5,178,440.26x = 21,596,301,053,379.24 - Step 5: Solve for x
x = 21,596,301,053,379.24/5,178,440.26 - Step 6: Final answer
x = 4,170,425.84
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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.