Finding the Fourth Proportional to 5,180,935.68, 7,149,737.76 and 2,857,917.12
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Solution
The fourth proportional to 5,180,935.68, 7,149,737.76 and 2,857,917.12 is: 3,943,951.29
Step by Step Solution
- Step 1: Write the proportion equation
5,180,935.68 : 7,149,737.76 = 2,857,917.12 : x - Step 2: Convert to fraction form
5,180,935.68/7,149,737.76 = 2,857,917.12/x - Step 3: Cross multiply
5,180,935.68x = 7,149,737.76 × 2,857,917.12 - Step 4: Simplify right side
5,180,935.68x = 20,433,357,947,814.45 - Step 5: Solve for x
x = 20,433,357,947,814.45/5,180,935.68 - Step 6: Final answer
x = 3,943,951.29
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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.