Finding the Fourth Proportional to 13,548,611.22, 18,697,103.99 and 7,353,660.18
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Solution
The fourth proportional to 13,548,611.22, 18,697,103.99 and 7,353,660.18 is: 10,148,062.17
Step by Step Solution
- Step 1: Write the proportion equation
13,548,611.22 : 18,697,103.99 = 7,353,660.18 : x - Step 2: Convert to fraction form
13,548,611.22/18,697,103.99 = 7,353,660.18/x - Step 3: Cross multiply
13,548,611.22x = 18,697,103.99 × 7,353,660.18 - Step 4: Simplify right side
13,548,611.22x = 137,492,149,017,480.75 - Step 5: Solve for x
x = 137,492,149,017,480.75/13,548,611.22 - Step 6: Final answer
x = 10,148,062.17
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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.