Finding the Fourth Proportional to 3,860,541.92, 5,327,645.90 and 2,118,210.85
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Solution
The fourth proportional to 3,860,541.92, 5,327,645.90 and 2,118,210.85 is: 2,923,184.77
Step by Step Solution
- Step 1: Write the proportion equation
3,860,541.92 : 5,327,645.90 = 2,118,210.85 : x - Step 2: Convert to fraction form
3,860,541.92/5,327,645.90 = 2,118,210.85/x - Step 3: Cross multiply
3,860,541.92x = 5,327,645.90 × 2,118,210.85 - Step 4: Simplify right side
3,860,541.92x = 11,285,077,350,338.02 - Step 5: Solve for x
x = 11,285,077,350,338.02/3,860,541.92 - Step 6: Final answer
x = 2,923,184.77
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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.