Finding the Fourth Proportional to 20,899,826.12, 28,842,116.58 and 11,481,014.23
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Solution
The fourth proportional to 20,899,826.12, 28,842,116.58 and 11,481,014.23 is: 15,843,995.49
Step by Step Solution
- Step 1: Write the proportion equation
20,899,826.12 : 28,842,116.58 = 11,481,014.23 : x - Step 2: Convert to fraction form
20,899,826.12/28,842,116.58 = 11,481,014.23/x - Step 3: Cross multiply
20,899,826.12x = 28,842,116.58 × 11,481,014.23 - Step 4: Simplify right side
20,899,826.12x = 331,136,750,734,088.31 - Step 5: Solve for x
x = 331,136,750,734,088.31/20,899,826.12 - Step 6: Final answer
x = 15,843,995.49
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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.