Finding the Fourth Proportional to 8,978,655.12, 13,467,982.68 and 3,296,420.88
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Solution
The fourth proportional to 8,978,655.12, 13,467,982.68 and 3,296,420.88 is: 4,944,631.32
Step by Step Solution
- Step 1: Write the proportion equation
8,978,655.12 : 13,467,982.68 = 3,296,420.88 : x - Step 2: Convert to fraction form
8,978,655.12/13,467,982.68 = 3,296,420.88/x - Step 3: Cross multiply
8,978,655.12x = 13,467,982.68 × 3,296,420.88 - Step 4: Simplify right side
8,978,655.12x = 44,396,139,317,830.36 - Step 5: Solve for x
x = 44,396,139,317,830.36/8,978,655.12 - Step 6: Final answer
x = 4,944,631.32
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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.