Finding the Fourth Proportional to 7,257,778.72, 10,886,903.84 and 2,139,779.44
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Solution
The fourth proportional to 7,257,778.72, 10,886,903.84 and 2,139,779.44 is: 3,209,738.67
Step by Step Solution
- Step 1: Write the proportion equation
7,257,778.72 : 10,886,903.84 = 2,139,779.44 : x - Step 2: Convert to fraction form
7,257,778.72/10,886,903.84 = 2,139,779.44/x - Step 3: Cross multiply
7,257,778.72x = 10,886,903.84 × 2,139,779.44 - Step 4: Simplify right side
7,257,778.72x = 23,295,573,002,089.05 - Step 5: Solve for x
x = 23,295,573,002,089.05/7,257,778.72 - Step 6: Final answer
x = 3,209,738.67
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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.