Finding the Fourth Proportional to 8,913,107.20, 13,369,660.80 and 8,346,236.80
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Solution
The fourth proportional to 8,913,107.20, 13,369,660.80 and 8,346,236.80 is: 12,519,355.20
Step by Step Solution
- Step 1: Write the proportion equation
8,913,107.20 : 13,369,660.80 = 8,346,236.80 : x - Step 2: Convert to fraction form
8,913,107.20/13,369,660.80 = 8,346,236.80/x - Step 3: Cross multiply
8,913,107.20x = 13,369,660.80 × 8,346,236.80 - Step 4: Simplify right side
8,913,107.20x = 111,586,354,972,477.44 - Step 5: Solve for x
x = 111,586,354,972,477.44/8,913,107.20 - Step 6: Final answer
x = 12,519,355.20
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1.5x scale
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.