Finding the Fourth Proportional to 3,101,390.62, 4,279,291.50 and 1,811,981.86
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Solution
The fourth proportional to 3,101,390.62, 4,279,291.50 and 1,811,981.86 is: 2,500,168.32
Step by Step Solution
- Step 1: Write the proportion equation
3,101,390.62 : 4,279,291.50 = 1,811,981.86 : x - Step 2: Convert to fraction form
3,101,390.62/4,279,291.50 = 1,811,981.86/x - Step 3: Cross multiply
3,101,390.62x = 4,279,291.50 × 1,811,981.86 - Step 4: Simplify right side
3,101,390.62x = 7,753,998,571,652.19 - Step 5: Solve for x
x = 7,753,998,571,652.19/3,101,390.62 - Step 6: Final answer
x = 2,500,168.32
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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.