Finding the Fourth Proportional to 20,832,759.44, 31,248,905.88 and 7,366,438.16
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Solution
The fourth proportional to 20,832,759.44, 31,248,905.88 and 7,366,438.16 is: 11,049,574.75
Step by Step Solution
- Step 1: Write the proportion equation
20,832,759.44 : 31,248,905.88 = 7,366,438.16 : x - Step 2: Convert to fraction form
20,832,759.44/31,248,905.88 = 7,366,438.16/x - Step 3: Cross multiply
20,832,759.44x = 31,248,905.88 × 7,366,438.16 - Step 4: Simplify right side
20,832,759.44x = 230,193,132,732,680.38 - Step 5: Solve for x
x = 230,193,132,732,680.38/20,832,759.44 - Step 6: Final answer
x = 11,049,574.75
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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.