Finding the Fourth Proportional to 20,764,089.36, 28,653,576.24 and 11,942,869.94
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Solution
The fourth proportional to 20,764,089.36, 28,653,576.24 and 11,942,869.94 is: 16,480,661.80
Step by Step Solution
- Step 1: Write the proportion equation
20,764,089.36 : 28,653,576.24 = 11,942,869.94 : x - Step 2: Convert to fraction form
20,764,089.36/28,653,576.24 = 11,942,869.94/x - Step 3: Cross multiply
20,764,089.36x = 28,653,576.24 × 11,942,869.94 - Step 4: Simplify right side
20,764,089.36x = 342,205,934,350,194.19 - Step 5: Solve for x
x = 342,205,934,350,194.19/20,764,089.36 - Step 6: Final answer
x = 16,480,661.80
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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.