Finding the Fourth Proportional to 16,128,217.40, 24,192,326.10 and 12,146,905.40
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Solution
The fourth proportional to 16,128,217.40, 24,192,326.10 and 12,146,905.40 is: 18,220,358.10
Step by Step Solution
- Step 1: Write the proportion equation
16,128,217.40 : 24,192,326.10 = 12,146,905.40 : x - Step 2: Convert to fraction form
16,128,217.40/24,192,326.10 = 12,146,905.40/x - Step 3: Cross multiply
16,128,217.40x = 24,192,326.10 × 12,146,905.40 - Step 4: Simplify right side
16,128,217.40x = 293,861,896,542,650.94 - Step 5: Solve for x
x = 293,861,896,542,650.94/16,128,217.40 - Step 6: Final answer
x = 18,220,358.10
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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.