Finding the Fourth Proportional to 57,965,128.80, 86,958,190.80 and 29,138,719.20
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Solution
The fourth proportional to 57,965,128.80, 86,958,190.80 and 29,138,719.20 is: 43,713,355.88
Step by Step Solution
- Step 1: Write the proportion equation
57,965,128.80 : 86,958,190.80 = 29,138,719.20 : x - Step 2: Convert to fraction form
57,965,128.80/86,958,190.80 = 29,138,719.20/x - Step 3: Cross multiply
57,965,128.80x = 86,958,190.80 × 29,138,719.20 - Step 4: Simplify right side
57,965,128.80x = 2,533,850,303,861,223 - Step 5: Solve for x
x = 2,533,850,303,861,223/57,965,128.80 - Step 6: Final answer
x = 43,713,355.88
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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.