Finding the Fourth Proportional to 203,068,343.62, 280,497,187.40 and 167,928,090.94
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Solution
The fourth proportional to 203,068,343.62, 280,497,187.40 and 167,928,090.94 is: 231,958,149.43
Step by Step Solution
- Step 1: Write the proportion equation
203,068,343.62 : 280,497,187.40 = 167,928,090.94 : x - Step 2: Convert to fraction form
203,068,343.62/280,497,187.40 = 167,928,090.94/x - Step 3: Cross multiply
203,068,343.62x = 280,497,187.40 × 167,928,090.94 - Step 4: Simplify right side
203,068,343.62x = 47,103,357,191,879,296 - Step 5: Solve for x
x = 47,103,357,191,879,296/203,068,343.62 - Step 6: Final answer
x = 231,958,149.43
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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.