Finding the Fourth Proportional to 4,180,396.64, 5,768,995.74 and 2,319,851.12
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Solution
The fourth proportional to 4,180,396.64, 5,768,995.74 and 2,319,851.12 is: 3,201,421.39
Step by Step Solution
- Step 1: Write the proportion equation
4,180,396.64 : 5,768,995.74 = 2,319,851.12 : x - Step 2: Convert to fraction form
4,180,396.64/5,768,995.74 = 2,319,851.12/x - Step 3: Cross multiply
4,180,396.64x = 5,768,995.74 × 2,319,851.12 - Step 4: Simplify right side
4,180,396.64x = 13,383,211,228,714.23 - Step 5: Solve for x
x = 13,383,211,228,714.23/4,180,396.64 - Step 6: Final answer
x = 3,201,421.39
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1.5x scale
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.