Finding the Fourth Proportional to 3,780,345.68, 5,217,871.56 and 2,149,708.88
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Solution
The fourth proportional to 3,780,345.68, 5,217,871.56 and 2,149,708.88 is: 2,967,163.79
Step by Step Solution
- Step 1: Write the proportion equation
3,780,345.68 : 5,217,871.56 = 2,149,708.88 : x - Step 2: Convert to fraction form
3,780,345.68/5,217,871.56 = 2,149,708.88/x - Step 3: Cross multiply
3,780,345.68x = 5,217,871.56 × 2,149,708.88 - Step 4: Simplify right side
3,780,345.68x = 11,216,904,827,231.45 - Step 5: Solve for x
x = 11,216,904,827,231.45/3,780,345.68 - Step 6: Final answer
x = 2,967,163.79
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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.