Finding the Fourth Proportional to 18,982,414.08, 28,478,474.64 and 5,519,242.08
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Solution
The fourth proportional to 18,982,414.08, 28,478,474.64 and 5,519,242.08 is: 8,280,274.31
Step by Step Solution
- Step 1: Write the proportion equation
18,982,414.08 : 28,478,474.64 = 5,519,242.08 : x - Step 2: Convert to fraction form
18,982,414.08/28,478,474.64 = 5,519,242.08/x - Step 3: Cross multiply
18,982,414.08x = 28,478,474.64 × 5,519,242.08 - Step 4: Simplify right side
18,982,414.08x = 157,179,595,607,300.84 - Step 5: Solve for x
x = 157,179,595,607,300.84/18,982,414.08 - Step 6: Final answer
x = 8,280,274.31
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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.