Finding the Fourth Proportional to 20,989,041.12, 31,483,567.44 and 16,203,715.68
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Solution
The fourth proportional to 20,989,041.12, 31,483,567.44 and 16,203,715.68 is: 24,305,577.97
Step by Step Solution
- Step 1: Write the proportion equation
20,989,041.12 : 31,483,567.44 = 16,203,715.68 : x - Step 2: Convert to fraction form
20,989,041.12/31,483,567.44 = 16,203,715.68/x - Step 3: Cross multiply
20,989,041.12x = 31,483,567.44 × 16,203,715.68 - Step 4: Simplify right side
20,989,041.12x = 510,150,775,389,865.50 - Step 5: Solve for x
x = 510,150,775,389,865.50/20,989,041.12 - Step 6: Final answer
x = 24,305,577.97
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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.