Finding the Fourth Proportional to 5,378,377.29, 7,422,162.21 and 2,930,989.02
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Solution
The fourth proportional to 5,378,377.29, 7,422,162.21 and 2,930,989.02 is: 4,044,765.69
Step by Step Solution
- Step 1: Write the proportion equation
5,378,377.29 : 7,422,162.21 = 2,930,989.02 : x - Step 2: Convert to fraction form
5,378,377.29/7,422,162.21 = 2,930,989.02/x - Step 3: Cross multiply
5,378,377.29x = 7,422,162.21 × 2,930,989.02 - Step 4: Simplify right side
5,378,377.29x = 21,754,275,942,168.93 - Step 5: Solve for x
x = 21,754,275,942,168.93/5,378,377.29 - Step 6: Final answer
x = 4,044,765.69
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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.