Finding the Fourth Proportional to 3,919,494.68, 5,408,719.86 and 2,177,276.99
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Solution
The fourth proportional to 3,919,494.68, 5,408,719.86 and 2,177,276.99 is: 3,004,540.70
Step by Step Solution
- Step 1: Write the proportion equation
3,919,494.68 : 5,408,719.86 = 2,177,276.99 : x - Step 2: Convert to fraction form
3,919,494.68/5,408,719.86 = 2,177,276.99/x - Step 3: Cross multiply
3,919,494.68x = 5,408,719.86 × 2,177,276.99 - Step 4: Simplify right side
3,919,494.68x = 11,776,281,269,490.42 - Step 5: Solve for x
x = 11,776,281,269,490.42/3,919,494.68 - Step 6: Final answer
x = 3,004,540.70
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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.