Finding the Fourth Proportional to 18,281,682.75, 25,228,725.84 and 10,132,920.75
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Solution
The fourth proportional to 18,281,682.75, 25,228,725.84 and 10,132,920.75 is: 13,983,432.66
Step by Step Solution
- Step 1: Write the proportion equation
18,281,682.75 : 25,228,725.84 = 10,132,920.75 : x - Step 2: Convert to fraction form
18,281,682.75/25,228,725.84 = 10,132,920.75/x - Step 3: Cross multiply
18,281,682.75x = 25,228,725.84 × 10,132,920.75 - Step 4: Simplify right side
18,281,682.75x = 255,640,679,560,197.19 - Step 5: Solve for x
x = 255,640,679,560,197.19/18,281,682.75 - Step 6: Final answer
x = 13,983,432.66
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1.5x scale
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.