Finding the Fourth Proportional to 10,071,715.20, 13,898,532.36 and 5,720,787.96
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Solution
The fourth proportional to 10,071,715.20, 13,898,532.36 and 5,720,787.96 is: 7,894,440.52
Step by Step Solution
- Step 1: Write the proportion equation
10,071,715.20 : 13,898,532.36 = 5,720,787.96 : x - Step 2: Convert to fraction form
10,071,715.20/13,898,532.36 = 5,720,787.96/x - Step 3: Cross multiply
10,071,715.20x = 13,898,532.36 × 5,720,787.96 - Step 4: Simplify right side
10,071,715.20x = 79,510,556,586,758.38 - Step 5: Solve for x
x = 79,510,556,586,758.38/10,071,715.20 - Step 6: Final answer
x = 7,894,440.52
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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.