Finding the Fourth Proportional to 4,971,648.22, 6,856,987.75 and 3,229,878.80
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Solution
The fourth proportional to 4,971,648.22, 6,856,987.75 and 3,229,878.80 is: 4,454,707.65
Step by Step Solution
- Step 1: Write the proportion equation
4,971,648.22 : 6,856,987.75 = 3,229,878.80 : x - Step 2: Convert to fraction form
4,971,648.22/6,856,987.75 = 3,229,878.80/x - Step 3: Cross multiply
4,971,648.22x = 6,856,987.75 × 3,229,878.80 - Step 4: Simplify right side
4,971,648.22x = 22,147,239,372,630.21 - Step 5: Solve for x
x = 22,147,239,372,630.21/4,971,648.22 - Step 6: Final answer
x = 4,454,707.65
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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.