Finding the Fourth Proportional to 5,414,415.60, 8,121,623.40 and 1,818,987.60
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Solution
The fourth proportional to 5,414,415.60, 8,121,623.40 and 1,818,987.60 is: 2,728,481.40
Step by Step Solution
- Step 1: Write the proportion equation
5,414,415.60 : 8,121,623.40 = 1,818,987.60 : x - Step 2: Convert to fraction form
5,414,415.60/8,121,623.40 = 1,818,987.60/x - Step 3: Cross multiply
5,414,415.60x = 8,121,623.40 × 1,818,987.60 - Step 4: Simplify right side
5,414,415.60x = 14,773,132,256,469.84 - Step 5: Solve for x
x = 14,773,132,256,469.84/5,414,415.60 - Step 6: Final answer
x = 2,728,481.40
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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.