Finding the Fourth Proportional to 7,430,742.70, 11,135,616.45 and 5,496,559.90
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Solution
The fourth proportional to 7,430,742.70, 11,135,616.45 and 5,496,559.90 is: 8,237,074.72
Step by Step Solution
- Step 1: Write the proportion equation
7,430,742.70 : 11,135,616.45 = 5,496,559.90 : x - Step 2: Convert to fraction form
7,430,742.70/11,135,616.45 = 5,496,559.90/x - Step 3: Cross multiply
7,430,742.70x = 11,135,616.45 × 5,496,559.90 - Step 4: Simplify right side
7,430,742.70x = 61,207,582,840,850.35 - Step 5: Solve for x
x = 61,207,582,840,850.35/7,430,742.70 - Step 6: Final answer
x = 8,237,074.72
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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.