Finding the Fourth Proportional to 18,361,996.20, 27,542,994.30 and 15,170,725.80
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Solution
The fourth proportional to 18,361,996.20, 27,542,994.30 and 15,170,725.80 is: 22,756,088.70
Step by Step Solution
- Step 1: Write the proportion equation
18,361,996.20 : 27,542,994.30 = 15,170,725.80 : x - Step 2: Convert to fraction form
18,361,996.20/27,542,994.30 = 15,170,725.80/x - Step 3: Cross multiply
18,361,996.20x = 27,542,994.30 × 15,170,725.80 - Step 4: Simplify right side
18,361,996.20x = 417,847,214,236,263 - Step 5: Solve for x
x = 417,847,214,236,263/18,361,996.20 - Step 6: Final answer
x = 22,756,088.70
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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.