Finding the Fourth Proportional to 7,056,344.12, 9,743,239.92 and 5,422,175.60
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Solution
The fourth proportional to 7,056,344.12, 9,743,239.92 and 5,422,175.60 is: 7,486,817.09
Step by Step Solution
- Step 1: Write the proportion equation
7,056,344.12 : 9,743,239.92 = 5,422,175.60 : x - Step 2: Convert to fraction form
7,056,344.12/9,743,239.92 = 5,422,175.60/x - Step 3: Cross multiply
7,056,344.12x = 9,743,239.92 × 5,422,175.60 - Step 4: Simplify right side
7,056,344.12x = 52,829,557,759,169.95 - Step 5: Solve for x
x = 52,829,557,759,169.95/7,056,344.12 - Step 6: Final answer
x = 7,486,817.09
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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.