Finding the Fourth Proportional to 6,436,205.20, 9,655,603.80 and 1,887,245.20
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Solution
The fourth proportional to 6,436,205.20, 9,655,603.80 and 1,887,245.20 is: 2,831,247.82
Step by Step Solution
- Step 1: Write the proportion equation
6,436,205.20 : 9,655,603.80 = 1,887,245.20 : x - Step 2: Convert to fraction form
6,436,205.20/9,655,603.80 = 1,887,245.20/x - Step 3: Cross multiply
6,436,205.20x = 9,655,603.80 × 1,887,245.20 - Step 4: Simplify right side
6,436,205.20x = 18,222,491,924,651.76 - Step 5: Solve for x
x = 18,222,491,924,651.76/6,436,205.20 - Step 6: Final answer
x = 2,831,247.82
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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.