Finding the Fourth Proportional to 3,828,928.68, 5,283,921.60 and 2,110,049.19
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Solution
The fourth proportional to 3,828,928.68, 5,283,921.60 and 2,110,049.19 is: 2,911,867.89
Step by Step Solution
- Step 1: Write the proportion equation
3,828,928.68 : 5,283,921.60 = 2,110,049.19 : x - Step 2: Convert to fraction form
3,828,928.68/5,283,921.60 = 2,110,049.19/x - Step 3: Cross multiply
3,828,928.68x = 5,283,921.60 × 2,110,049.19 - Step 4: Simplify right side
3,828,928.68x = 11,149,334,492,103.50 - Step 5: Solve for x
x = 11,149,334,492,103.50/3,828,928.68 - Step 6: Final answer
x = 2,911,867.89
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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.