Finding the Fourth Proportional to 12,211,731.74, 18,293,652.02 and 7,083,387.62
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Solution
The fourth proportional to 12,211,731.74, 18,293,652.02 and 7,083,387.62 is: 10,611,191.84
Step by Step Solution
- Step 1: Write the proportion equation
12,211,731.74 : 18,293,652.02 = 7,083,387.62 : x - Step 2: Convert to fraction form
12,211,731.74/18,293,652.02 = 7,083,387.62/x - Step 3: Cross multiply
12,211,731.74x = 18,293,652.02 × 7,083,387.62 - Step 4: Simplify right side
12,211,731.74x = 129,581,028,116,170.80 - Step 5: Solve for x
x = 129,581,028,116,170.80/12,211,731.74 - Step 6: Final answer
x = 10,611,191.84
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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.