Finding the Fourth Proportional to 5,127,874.96, 7,689,568.44 and 2,432,968.72
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Solution
The fourth proportional to 5,127,874.96, 7,689,568.44 and 2,432,968.72 is: 3,648,388.39
Step by Step Solution
- Step 1: Write the proportion equation
5,127,874.96 : 7,689,568.44 = 2,432,968.72 : x - Step 2: Convert to fraction form
5,127,874.96/7,689,568.44 = 2,432,968.72/x - Step 3: Cross multiply
5,127,874.96x = 7,689,568.44 × 2,432,968.72 - Step 4: Simplify right side
5,127,874.96x = 18,708,479,484,819.20 - Step 5: Solve for x
x = 18,708,479,484,819.20/5,127,874.96 - Step 6: Final answer
x = 3,648,388.39
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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.