Finding the Fourth Proportional to 20,252,020.56, 27,949,050.53 and 11,432,964.75
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Solution
The fourth proportional to 20,252,020.56, 27,949,050.53 and 11,432,964.75 is: 15,778,203.89
Step by Step Solution
- Step 1: Write the proportion equation
20,252,020.56 : 27,949,050.53 = 11,432,964.75 : x - Step 2: Convert to fraction form
20,252,020.56/27,949,050.53 = 11,432,964.75/x - Step 3: Cross multiply
20,252,020.56x = 27,949,050.53 × 11,432,964.75 - Step 4: Simplify right side
20,252,020.56x = 319,540,509,505,458.81 - Step 5: Solve for x
x = 319,540,509,505,458.81/20,252,020.56 - Step 6: Final answer
x = 15,778,203.89
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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.