Finding the Fourth Proportional to 66,979,185.12, 100,322,298.09 and 47,489,334.08
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Solution
The fourth proportional to 66,979,185.12, 100,322,298.09 and 47,489,334.08 is: 71,130,144.70
Step by Step Solution
- Step 1: Write the proportion equation
66,979,185.12 : 100,322,298.09 = 47,489,334.08 : x - Step 2: Convert to fraction form
66,979,185.12/100,322,298.09 = 47,489,334.08/x - Step 3: Cross multiply
66,979,185.12x = 100,322,298.09 × 47,489,334.08 - Step 4: Simplify right side
66,979,185.12x = 4,764,239,129,167,745 - Step 5: Solve for x
x = 4,764,239,129,167,745/66,979,185.12 - Step 6: Final answer
x = 71,130,144.70
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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.