Finding the Fourth Proportional to 5,178,740.57, 7,149,113.33 and 3,002,489.68
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Solution
The fourth proportional to 5,178,740.57, 7,149,113.33 and 3,002,489.68 is: 4,144,856.98
Step by Step Solution
- Step 1: Write the proportion equation
5,178,740.57 : 7,149,113.33 = 3,002,489.68 : x - Step 2: Convert to fraction form
5,178,740.57/7,149,113.33 = 3,002,489.68/x - Step 3: Cross multiply
5,178,740.57x = 7,149,113.33 × 3,002,489.68 - Step 4: Simplify right side
5,178,740.57x = 21,465,138,994,475.44 - Step 5: Solve for x
x = 21,465,138,994,475.44/5,178,740.57 - Step 6: Final answer
x = 4,144,856.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.