Finding the Fourth Proportional to 10,378,849.84, 15,569,760.54 and 3,190,987.26
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Solution
The fourth proportional to 10,378,849.84, 15,569,760.54 and 3,190,987.26 is: 4,786,937.69
Step by Step Solution
- Step 1: Write the proportion equation
10,378,849.84 : 15,569,760.54 = 3,190,987.26 : x - Step 2: Convert to fraction form
10,378,849.84/15,569,760.54 = 3,190,987.26/x - Step 3: Cross multiply
10,378,849.84x = 15,569,760.54 × 3,190,987.26 - Step 4: Simplify right side
10,378,849.84x = 49,682,907,524,390.71 - Step 5: Solve for x
x = 49,682,907,524,390.71/10,378,849.84 - Step 6: Final answer
x = 4,786,937.69
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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.