Finding the Fourth Proportional to 129,764,714.72, 194,622,265.68 and 38,888,303.72
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Solution
The fourth proportional to 129,764,714.72, 194,622,265.68 and 38,888,303.72 is: 58,325,021.52
Step by Step Solution
- Step 1: Write the proportion equation
129,764,714.72 : 194,622,265.68 = 38,888,303.72 : x - Step 2: Convert to fraction form
129,764,714.72/194,622,265.68 = 38,888,303.72/x - Step 3: Cross multiply
129,764,714.72x = 194,622,265.68 × 38,888,303.72 - Step 4: Simplify right side
129,764,714.72x = 7,568,529,778,438,372 - Step 5: Solve for x
x = 7,568,529,778,438,372/129,764,714.72 - Step 6: Final answer
x = 58,325,021.52
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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.