Finding the Fourth Proportional to 5,161,208.86, 7,122,495.90 and 2,838,251.14
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Solution
The fourth proportional to 5,161,208.86, 7,122,495.90 and 2,838,251.14 is: 3,916,801.79
Step by Step Solution
- Step 1: Write the proportion equation
5,161,208.86 : 7,122,495.90 = 2,838,251.14 : x - Step 2: Convert to fraction form
5,161,208.86/7,122,495.90 = 2,838,251.14/x - Step 3: Cross multiply
5,161,208.86x = 7,122,495.90 × 2,838,251.14 - Step 4: Simplify right side
5,161,208.86x = 20,215,432,107,820.33 - Step 5: Solve for x
x = 20,215,432,107,820.33/5,161,208.86 - Step 6: Final answer
x = 3,916,801.79
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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.