Finding the Fourth Proportional to 117,524,134.40, 176,286,201.60 and 71,539,980.80
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Solution
The fourth proportional to 117,524,134.40, 176,286,201.60 and 71,539,980.80 is: 107,309,971.20
Step by Step Solution
- Step 1: Write the proportion equation
117,524,134.40 : 176,286,201.60 = 71,539,980.80 : x - Step 2: Convert to fraction form
117,524,134.40/176,286,201.60 = 71,539,980.80/x - Step 3: Cross multiply
117,524,134.40x = 176,286,201.60 × 71,539,980.80 - Step 4: Simplify right side
117,524,134.40x = 12,611,511,477,768,928 - Step 5: Solve for x
x = 12,611,511,477,768,928/117,524,134.40 - Step 6: Final answer
x = 107,309,971.20
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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.