Finding the Fourth Proportional to 8,239,851.20, 12,334,893.60 and 7,244,523.20
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Solution
The fourth proportional to 8,239,851.20, 12,334,893.60 and 7,244,523.20 is: 10,844,907.35
Step by Step Solution
- Step 1: Write the proportion equation
8,239,851.20 : 12,334,893.60 = 7,244,523.20 : x - Step 2: Convert to fraction form
8,239,851.20/12,334,893.60 = 7,244,523.20/x - Step 3: Cross multiply
8,239,851.20x = 12,334,893.60 × 7,244,523.20 - Step 4: Simplify right side
8,239,851.20x = 89,360,422,854,731.52 - Step 5: Solve for x
x = 89,360,422,854,731.52/8,239,851.20 - Step 6: Final answer
x = 10,844,907.35
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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.