Finding the Fourth Proportional to 18,376,912.20, 27,565,368.30 and 13,593,943.20
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Solution
The fourth proportional to 18,376,912.20, 27,565,368.30 and 13,593,943.20 is: 20,390,914.80
Step by Step Solution
- Step 1: Write the proportion equation
18,376,912.20 : 27,565,368.30 = 13,593,943.20 : x - Step 2: Convert to fraction form
18,376,912.20/27,565,368.30 = 13,593,943.20/x - Step 3: Cross multiply
18,376,912.20x = 27,565,368.30 × 13,593,943.20 - Step 4: Simplify right side
18,376,912.20x = 374,722,050,957,280.56 - Step 5: Solve for x
x = 374,722,050,957,280.56/18,376,912.20 - Step 6: Final answer
x = 20,390,914.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.