Finding the Fourth Proportional to 11,831,621.70, 17,747,432.55 and 5,454,329.70
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Solution
The fourth proportional to 11,831,621.70, 17,747,432.55 and 5,454,329.70 is: 8,181,494.55
Step by Step Solution
- Step 1: Write the proportion equation
11,831,621.70 : 17,747,432.55 = 5,454,329.70 : x - Step 2: Convert to fraction form
11,831,621.70/17,747,432.55 = 5,454,329.70/x - Step 3: Cross multiply
11,831,621.70x = 17,747,432.55 × 5,454,329.70 - Step 4: Simplify right side
11,831,621.70x = 96,800,348,456,211.75 - Step 5: Solve for x
x = 96,800,348,456,211.75/11,831,621.70 - Step 6: Final answer
x = 8,181,494.55
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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.