Finding the Fourth Proportional to 12,189,512.22, 16,823,240.58 and 7,544,787.13
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Solution
The fourth proportional to 12,189,512.22, 16,823,240.58 and 7,544,787.13 is: 10,412,866.96
Step by Step Solution
- Step 1: Write the proportion equation
12,189,512.22 : 16,823,240.58 = 7,544,787.13 : x - Step 2: Convert to fraction form
12,189,512.22/16,823,240.58 = 7,544,787.13/x - Step 3: Cross multiply
12,189,512.22x = 16,823,240.58 × 7,544,787.13 - Step 4: Simplify right side
12,189,512.22x = 126,927,769,012,877.72 - Step 5: Solve for x
x = 126,927,769,012,877.72/12,189,512.22 - Step 6: Final answer
x = 10,412,866.96
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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.