Finding the Fourth Proportional to 280,410,081.41, 420,239,146.38 and 218,236,470.08
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Solution
The fourth proportional to 280,410,081.41, 420,239,146.38 and 218,236,470.08 is: 327,062,092.18
Step by Step Solution
- Step 1: Write the proportion equation
280,410,081.41 : 420,239,146.38 = 218,236,470.08 : x - Step 2: Convert to fraction form
280,410,081.41/420,239,146.38 = 218,236,470.08/x - Step 3: Cross multiply
280,410,081.41x = 420,239,146.38 × 218,236,470.08 - Step 4: Simplify right side
280,410,081.41x = 91,711,507,892,484,032 - Step 5: Solve for x
x = 91,711,507,892,484,032/280,410,081.41 - Step 6: Final answer
x = 327,062,092.18
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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.