Finding the Fourth Proportional to 16,128,422.90, 24,192,634.35 and 12,147,110.90
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Solution
The fourth proportional to 16,128,422.90, 24,192,634.35 and 12,147,110.90 is: 18,220,666.35
Step by Step Solution
- Step 1: Write the proportion equation
16,128,422.90 : 24,192,634.35 = 12,147,110.90 : x - Step 2: Convert to fraction form
16,128,422.90/24,192,634.35 = 12,147,110.90/x - Step 3: Cross multiply
16,128,422.90x = 24,192,634.35 × 12,147,110.90 - Step 4: Simplify right side
16,128,422.90x = 293,870,612,412,599.44 - Step 5: Solve for x
x = 293,870,612,412,599.44/16,128,422.90 - Step 6: Final answer
x = 18,220,666.35
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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.