Finding the Fourth Proportional to 7,647,546.42, 10,553,993.01 and 4,209,750.90
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Solution
The fourth proportional to 7,647,546.42, 10,553,993.01 and 4,209,750.90 is: 5,809,664.84
Step by Step Solution
- Step 1: Write the proportion equation
7,647,546.42 : 10,553,993.01 = 4,209,750.90 : x - Step 2: Convert to fraction form
7,647,546.42/10,553,993.01 = 4,209,750.90/x - Step 3: Cross multiply
7,647,546.42x = 10,553,993.01 × 4,209,750.90 - Step 4: Simplify right side
7,647,546.42x = 44,429,681,572,441.21 - Step 5: Solve for x
x = 44,429,681,572,441.21/7,647,546.42 - Step 6: Final answer
x = 5,809,664.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.