Finding the Fourth Proportional to 12,239,758.40, 18,361,387.20 and 4,153,107.20
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Solution
The fourth proportional to 12,239,758.40, 18,361,387.20 and 4,153,107.20 is: 6,230,254.46
Step by Step Solution
- Step 1: Write the proportion equation
12,239,758.40 : 18,361,387.20 = 4,153,107.20 : x - Step 2: Convert to fraction form
12,239,758.40/18,361,387.20 = 4,153,107.20/x - Step 3: Cross multiply
12,239,758.40x = 18,361,387.20 × 4,153,107.20 - Step 4: Simplify right side
12,239,758.40x = 76,256,809,382,307.84 - Step 5: Solve for x
x = 76,256,809,382,307.84/12,239,758.40 - Step 6: Final answer
x = 6,230,254.46
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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.