Finding the Fourth Proportional to 4,930,021.62, 7,390,133.49 and 3,430,964.34
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Solution
The fourth proportional to 4,930,021.62, 7,390,133.49 and 3,430,964.34 is: 5,143,037.18
Step by Step Solution
- Step 1: Write the proportion equation
4,930,021.62 : 7,390,133.49 = 3,430,964.34 : x - Step 2: Convert to fraction form
4,930,021.62/7,390,133.49 = 3,430,964.34/x - Step 3: Cross multiply
4,930,021.62x = 7,390,133.49 × 3,430,964.34 - Step 4: Simplify right side
4,930,021.62x = 25,355,284,472,029.75 - Step 5: Solve for x
x = 25,355,284,472,029.75/4,930,021.62 - Step 6: Final answer
x = 5,143,037.18
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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.