Finding the Fourth Proportional to 7,868,378.21, 10,858,107.28 and 4,516,096.31
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Solution
The fourth proportional to 7,868,378.21, 10,858,107.28 and 4,516,096.31 is: 6,232,066.75
Step by Step Solution
- Step 1: Write the proportion equation
7,868,378.21 : 10,858,107.28 = 4,516,096.31 : x - Step 2: Convert to fraction form
7,868,378.21/10,858,107.28 = 4,516,096.31/x - Step 3: Cross multiply
7,868,378.21x = 10,858,107.28 × 4,516,096.31 - Step 4: Simplify right side
7,868,378.21x = 49,036,258,155,211.36 - Step 5: Solve for x
x = 49,036,258,155,211.36/7,868,378.21 - Step 6: Final answer
x = 6,232,066.75
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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.