Finding the Fourth Proportional to 18,809,035.63, 28,213,903.49 and 5,346,213.55
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Solution
The fourth proportional to 18,809,035.63, 28,213,903.49 and 5,346,213.55 is: 8,019,419.82
Step by Step Solution
- Step 1: Write the proportion equation
18,809,035.63 : 28,213,903.49 = 5,346,213.55 : x - Step 2: Convert to fraction form
18,809,035.63/28,213,903.49 = 5,346,213.55/x - Step 3: Cross multiply
18,809,035.63x = 28,213,903.49 × 5,346,213.55 - Step 4: Simplify right side
18,809,035.63x = 150,837,553,136,630.28 - Step 5: Solve for x
x = 150,837,553,136,630.28/18,809,035.63 - Step 6: Final answer
x = 8,019,419.82
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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.