Finding the Fourth Proportional to 7,239,936.60, 10,861,362.90 and 2,122,356.60
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Solution
The fourth proportional to 7,239,936.60, 10,861,362.90 and 2,122,356.60 is: 3,183,962.31
Step by Step Solution
- Step 1: Write the proportion equation
7,239,936.60 : 10,861,362.90 = 2,122,356.60 : x - Step 2: Convert to fraction form
7,239,936.60/10,861,362.90 = 2,122,356.60/x - Step 3: Cross multiply
7,239,936.60x = 10,861,362.90 × 2,122,356.60 - Step 4: Simplify right side
7,239,936.60x = 23,051,685,235,810.14 - Step 5: Solve for x
x = 23,051,685,235,810.14/7,239,936.60 - Step 6: Final answer
x = 3,183,962.31
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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.