Finding the Fourth Proportional to 331,998,974.32, 498,170,808.01 and 135,406,615.79
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Solution
The fourth proportional to 331,998,974.32, 498,170,808.01 and 135,406,615.79 is: 203,180,215.65
Step by Step Solution
- Step 1: Write the proportion equation
331,998,974.32 : 498,170,808.01 = 135,406,615.79 : x - Step 2: Convert to fraction form
331,998,974.32/498,170,808.01 = 135,406,615.79/x - Step 3: Cross multiply
331,998,974.32x = 498,170,808.01 × 135,406,615.79 - Step 4: Simplify right side
331,998,974.32x = 67,455,623,198,399,240 - Step 5: Solve for x
x = 67,455,623,198,399,240/331,998,974.32 - Step 6: Final answer
x = 203,180,215.65
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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.