Finding the Fourth Proportional to 213,198,449.60, 294,214,799.40 and 115,413,305.60
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Solution
The fourth proportional to 213,198,449.60, 294,214,799.40 and 115,413,305.60 is: 159,270,870.02
Step by Step Solution
- Step 1: Write the proportion equation
213,198,449.60 : 294,214,799.40 = 115,413,305.60 : x - Step 2: Convert to fraction form
213,198,449.60/294,214,799.40 = 115,413,305.60/x - Step 3: Cross multiply
213,198,449.60x = 294,214,799.40 × 115,413,305.60 - Step 4: Simplify right side
213,198,449.60x = 33,956,302,555,194,892 - Step 5: Solve for x
x = 33,956,302,555,194,892/213,198,449.60 - Step 6: Final answer
x = 159,270,870.02
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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.