Finding the Fourth Proportional to 4,115,158.95, 5,678,857.83 and 2,279,611.74
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Solution
The fourth proportional to 4,115,158.95, 5,678,857.83 and 2,279,611.74 is: 3,145,830.12
Step by Step Solution
- Step 1: Write the proportion equation
4,115,158.95 : 5,678,857.83 = 2,279,611.74 : x - Step 2: Convert to fraction form
4,115,158.95/5,678,857.83 = 2,279,611.74/x - Step 3: Cross multiply
4,115,158.95x = 5,678,857.83 × 2,279,611.74 - Step 4: Simplify right side
4,115,158.95x = 12,945,590,979,058.93 - Step 5: Solve for x
x = 12,945,590,979,058.93/4,115,158.95 - Step 6: Final answer
x = 3,145,830.12
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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.