Finding the Fourth Proportional to 5,423,134.74, 8,134,749.78 and 1,379,626.84
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Solution
The fourth proportional to 5,423,134.74, 8,134,749.78 and 1,379,626.84 is: 2,069,452.39
Step by Step Solution
- Step 1: Write the proportion equation
5,423,134.74 : 8,134,749.78 = 1,379,626.84 : x - Step 2: Convert to fraction form
5,423,134.74/8,134,749.78 = 1,379,626.84/x - Step 3: Cross multiply
5,423,134.74x = 8,134,749.78 × 1,379,626.84 - Step 4: Simplify right side
5,423,134.74x = 11,222,919,133,172.10 - Step 5: Solve for x
x = 11,222,919,133,172.10/5,423,134.74 - Step 6: Final answer
x = 2,069,452.39
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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.