Finding the Fourth Proportional to 115,713,682.44, 159,639,423.12 and 66,127,453.80
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Solution
The fourth proportional to 115,713,682.44, 159,639,423.12 and 66,127,453.80 is: 91,229,907.77
Step by Step Solution
- Step 1: Write the proportion equation
115,713,682.44 : 159,639,423.12 = 66,127,453.80 : x - Step 2: Convert to fraction form
115,713,682.44/159,639,423.12 = 66,127,453.80/x - Step 3: Cross multiply
115,713,682.44x = 159,639,423.12 × 66,127,453.80 - Step 4: Simplify right side
115,713,682.44x = 10,556,548,577,026,452 - Step 5: Solve for x
x = 10,556,548,577,026,452/115,713,682.44 - Step 6: Final answer
x = 91,229,907.77
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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.