Finding the Fourth Proportional to 20,837,070.24, 28,754,784.12 and 11,544,453.93
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Solution
The fourth proportional to 20,837,070.24, 28,754,784.12 and 11,544,453.93 is: 15,931,139.87
Step by Step Solution
- Step 1: Write the proportion equation
20,837,070.24 : 28,754,784.12 = 11,544,453.93 : x - Step 2: Convert to fraction form
20,837,070.24/28,754,784.12 = 11,544,453.93/x - Step 3: Cross multiply
20,837,070.24x = 28,754,784.12 × 11,544,453.93 - Step 4: Simplify right side
20,837,070.24x = 331,958,280,540,435.62 - Step 5: Solve for x
x = 331,958,280,540,435.62/20,837,070.24 - Step 6: Final answer
x = 15,931,139.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.