Finding the Fourth Proportional to 10,378,203.60, 15,579,115.20 and 6,120,770.70
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Solution
The fourth proportional to 10,378,203.60, 15,579,115.20 and 6,120,770.70 is: 9,188,121.14
Step by Step Solution
- Step 1: Write the proportion equation
10,378,203.60 : 15,579,115.20 = 6,120,770.70 : x - Step 2: Convert to fraction form
10,378,203.60/15,579,115.20 = 6,120,770.70/x - Step 3: Cross multiply
10,378,203.60x = 15,579,115.20 × 6,120,770.70 - Step 4: Simplify right side
10,378,203.60x = 95,356,191,848,084.64 - Step 5: Solve for x
x = 95,356,191,848,084.64/10,378,203.60 - Step 6: Final answer
x = 9,188,121.14
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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.