Finding the Fourth Proportional to 7,438,752.71, 11,162,433.84 and 3,120,416.11
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Solution
The fourth proportional to 7,438,752.71, 11,162,433.84 and 3,120,416.11 is: 4,682,429.94
Step by Step Solution
- Step 1: Write the proportion equation
7,438,752.71 : 11,162,433.84 = 3,120,416.11 : x - Step 2: Convert to fraction form
7,438,752.71/11,162,433.84 = 3,120,416.11/x - Step 3: Cross multiply
7,438,752.71x = 11,162,433.84 × 3,120,416.11 - Step 4: Simplify right side
7,438,752.71x = 34,831,438,381,145.16 - Step 5: Solve for x
x = 34,831,438,381,145.16/7,438,752.71 - Step 6: Final answer
x = 4,682,429.94
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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.