Finding the Fourth Proportional to 5,171,311.26, 7,756,966.89 and 2,645,588.70
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Solution
The fourth proportional to 5,171,311.26, 7,756,966.89 and 2,645,588.70 is: 3,968,383.05
Step by Step Solution
- Step 1: Write the proportion equation
5,171,311.26 : 7,756,966.89 = 2,645,588.70 : x - Step 2: Convert to fraction form
5,171,311.26/7,756,966.89 = 2,645,588.70/x - Step 3: Cross multiply
5,171,311.26x = 7,756,966.89 × 2,645,588.70 - Step 4: Simplify right side
5,171,311.26x = 20,521,743,950,458.14 - Step 5: Solve for x
x = 20,521,743,950,458.14/5,171,311.26 - Step 6: Final answer
x = 3,968,383.05
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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.