Finding the Fourth Proportional to 12,126,885.40, 18,192,855.30 and 4,042,372.60
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Solution
The fourth proportional to 12,126,885.40, 18,192,855.30 and 4,042,372.60 is: 6,064,401.32
Step by Step Solution
- Step 1: Write the proportion equation
12,126,885.40 : 18,192,855.30 = 4,042,372.60 : x - Step 2: Convert to fraction form
12,126,885.40/18,192,855.30 = 4,042,372.60/x - Step 3: Cross multiply
12,126,885.40x = 18,192,855.30 × 4,042,372.60 - Step 4: Simplify right side
12,126,885.40x = 73,542,299,780,484.78 - Step 5: Solve for x
x = 73,542,299,780,484.78/12,126,885.40 - Step 6: Final answer
x = 6,064,401.32
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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.