Finding the Fourth Proportional to 38,647,765.92, 53,334,027.60 and 22,128,143.88
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Solution
The fourth proportional to 38,647,765.92, 53,334,027.60 and 22,128,143.88 is: 30,536,901.90
Step by Step Solution
- Step 1: Write the proportion equation
38,647,765.92 : 53,334,027.60 = 22,128,143.88 : x - Step 2: Convert to fraction form
38,647,765.92/53,334,027.60 = 22,128,143.88/x - Step 3: Cross multiply
38,647,765.92x = 53,334,027.60 × 22,128,143.88 - Step 4: Simplify right side
38,647,765.92x = 1,180,183,036,432,691 - Step 5: Solve for x
x = 1,180,183,036,432,691/38,647,765.92 - Step 6: Final answer
x = 30,536,901.90
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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.