Finding the Fourth Proportional to 13,352,786.19, 20,028,961.92 and 4,254,760.92
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Solution
The fourth proportional to 13,352,786.19, 20,028,961.92 and 4,254,760.92 is: 6,382,072.12
Step by Step Solution
- Step 1: Write the proportion equation
13,352,786.19 : 20,028,961.92 = 4,254,760.92 : x - Step 2: Convert to fraction form
13,352,786.19/20,028,961.92 = 4,254,760.92/x - Step 3: Cross multiply
13,352,786.19x = 20,028,961.92 × 4,254,760.92 - Step 4: Simplify right side
13,352,786.19x = 85,218,444,445,384.17 - Step 5: Solve for x
x = 85,218,444,445,384.17/13,352,786.19 - Step 6: Final answer
x = 6,382,072.12
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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.