Finding the Fourth Proportional to 5,134,351.26, 7,085,406.46 and 2,811,390.70
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Solution
The fourth proportional to 5,134,351.26, 7,085,406.46 and 2,811,390.70 is: 3,879,720.11
Step by Step Solution
- Step 1: Write the proportion equation
5,134,351.26 : 7,085,406.46 = 2,811,390.70 : x - Step 2: Convert to fraction form
5,134,351.26/7,085,406.46 = 2,811,390.70/x - Step 3: Cross multiply
5,134,351.26x = 7,085,406.46 × 2,811,390.70 - Step 4: Simplify right side
5,134,351.26x = 19,919,845,827,363.92 - Step 5: Solve for x
x = 19,919,845,827,363.92/5,134,351.26 - Step 6: Final answer
x = 3,879,720.11
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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.