Finding the Fourth Proportional to 20,538,163.08, 30,762,953.64 and 19,330,845.12
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Solution
The fourth proportional to 20,538,163.08, 30,762,953.64 and 19,330,845.12 is: 28,954,580.31
Step by Step Solution
- Step 1: Write the proportion equation
20,538,163.08 : 30,762,953.64 = 19,330,845.12 : x - Step 2: Convert to fraction form
20,538,163.08/30,762,953.64 = 19,330,845.12/x - Step 3: Cross multiply
20,538,163.08x = 30,762,953.64 × 19,330,845.12 - Step 4: Simplify right side
20,538,163.08x = 594,673,892,248,580.25 - Step 5: Solve for x
x = 594,673,892,248,580.25/20,538,163.08 - Step 6: Final answer
x = 28,954,580.31
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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.