Finding the Fourth Proportional to 7,432,775.40, 11,149,163.10 and 6,653,328.60
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Solution
The fourth proportional to 7,432,775.40, 11,149,163.10 and 6,653,328.60 is: 9,979,992.90
Step by Step Solution
- Step 1: Write the proportion equation
7,432,775.40 : 11,149,163.10 = 6,653,328.60 : x - Step 2: Convert to fraction form
7,432,775.40/11,149,163.10 = 6,653,328.60/x - Step 3: Cross multiply
7,432,775.40x = 11,149,163.10 × 6,653,328.60 - Step 4: Simplify right side
7,432,775.40x = 74,179,045,719,294.66 - Step 5: Solve for x
x = 74,179,045,719,294.66/7,432,775.40 - Step 6: Final answer
x = 9,979,992.90
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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.