Finding the Fourth Proportional to 7,883,977.20, 11,825,965.80 and 6,289,654.20
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Solution
The fourth proportional to 7,883,977.20, 11,825,965.80 and 6,289,654.20 is: 9,434,481.30
Step by Step Solution
- Step 1: Write the proportion equation
7,883,977.20 : 11,825,965.80 = 6,289,654.20 : x - Step 2: Convert to fraction form
7,883,977.20/11,825,965.80 = 6,289,654.20/x - Step 3: Cross multiply
7,883,977.20x = 11,825,965.80 × 6,289,654.20 - Step 4: Simplify right side
7,883,977.20x = 74,381,235,463,026.36 - Step 5: Solve for x
x = 74,381,235,463,026.36/7,883,977.20 - Step 6: Final answer
x = 9,434,481.30
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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.