Finding the Fourth Proportional to 7,447,227.80, 11,170,841.70 and 5,557,659.80
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Solution
The fourth proportional to 7,447,227.80, 11,170,841.70 and 5,557,659.80 is: 8,336,489.70
Step by Step Solution
- Step 1: Write the proportion equation
7,447,227.80 : 11,170,841.70 = 5,557,659.80 : x - Step 2: Convert to fraction form
7,447,227.80/11,170,841.70 = 5,557,659.80/x - Step 3: Cross multiply
7,447,227.80x = 11,170,841.70 × 5,557,659.80 - Step 4: Simplify right side
7,447,227.80x = 62,083,737,848,253.66 - Step 5: Solve for x
x = 62,083,737,848,253.66/7,447,227.80 - Step 6: Final answer
x = 8,336,489.70
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1.5x scale
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.