Finding the Fourth Proportional to 6,721,788.24, 9,276,025.64 and 3,821,178.65
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Solution
The fourth proportional to 6,721,788.24, 9,276,025.64 and 3,821,178.65 is: 5,273,202.58
Step by Step Solution
- Step 1: Write the proportion equation
6,721,788.24 : 9,276,025.64 = 3,821,178.65 : x - Step 2: Convert to fraction form
6,721,788.24/9,276,025.64 = 3,821,178.65/x - Step 3: Cross multiply
6,721,788.24x = 9,276,025.64 × 3,821,178.65 - Step 4: Simplify right side
6,721,788.24x = 35,445,351,066,934.56 - Step 5: Solve for x
x = 35,445,351,066,934.56/6,721,788.24 - Step 6: Final answer
x = 5,273,202.58
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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.