Finding the Fourth Proportional to 4,115,135.13, 5,678,812.10 and 2,279,587.74
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Solution
The fourth proportional to 4,115,135.13, 5,678,812.10 and 2,279,587.74 is: 3,145,789.88
Step by Step Solution
- Step 1: Write the proportion equation
4,115,135.13 : 5,678,812.10 = 2,279,587.74 : x - Step 2: Convert to fraction form
4,115,135.13/5,678,812.10 = 2,279,587.74/x - Step 3: Cross multiply
4,115,135.13x = 5,678,812.10 × 2,279,587.74 - Step 4: Simplify right side
4,115,135.13x = 12,945,350,429,525.72 - Step 5: Solve for x
x = 12,945,350,429,525.72/4,115,135.13 - Step 6: Final answer
x = 3,145,789.88
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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.