Finding the Fourth Proportional to 18,809,034.63, 28,213,901.99 and 5,346,212.55
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Solution
The fourth proportional to 18,809,034.63, 28,213,901.99 and 5,346,212.55 is: 8,019,418.32
Step by Step Solution
- Step 1: Write the proportion equation
18,809,034.63 : 28,213,901.99 = 5,346,212.55 : x - Step 2: Convert to fraction form
18,809,034.63/28,213,901.99 = 5,346,212.55/x - Step 3: Cross multiply
18,809,034.63x = 28,213,901.99 × 5,346,212.55 - Step 4: Simplify right side
18,809,034.63x = 150,837,516,903,407.97 - Step 5: Solve for x
x = 150,837,516,903,407.97/18,809,034.63 - Step 6: Final answer
x = 8,019,418.32
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1.5x scale
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.