Finding the Fourth Proportional to 122,449,274.64, 168,979,983.84 and 67,445,131.14
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Solution
The fourth proportional to 122,449,274.64, 168,979,983.84 and 67,445,131.14 is: 93,074,272.62
Step by Step Solution
- Step 1: Write the proportion equation
122,449,274.64 : 168,979,983.84 = 67,445,131.14 : x - Step 2: Convert to fraction form
122,449,274.64/168,979,983.84 = 67,445,131.14/x - Step 3: Cross multiply
122,449,274.64x = 168,979,983.84 × 67,445,131.14 - Step 4: Simplify right side
122,449,274.64x = 11,396,877,170,123,882 - Step 5: Solve for x
x = 11,396,877,170,123,882/122,449,274.64 - Step 6: Final answer
x = 93,074,272.62
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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.