Finding the Fourth Proportional to 222,481,511.10, 306,996,261.48 and 121,983,504.12
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Solution
The fourth proportional to 222,481,511.10, 306,996,261.48 and 121,983,504.12 is: 168,321,760.95
Step by Step Solution
- Step 1: Write the proportion equation
222,481,511.10 : 306,996,261.48 = 121,983,504.12 : x - Step 2: Convert to fraction form
222,481,511.10/306,996,261.48 = 121,983,504.12/x - Step 3: Cross multiply
222,481,511.10x = 306,996,261.48 × 121,983,504.12 - Step 4: Simplify right side
222,481,511.10x = 37,448,479,727,070,184 - Step 5: Solve for x
x = 37,448,479,727,070,184/222,481,511.10 - Step 6: Final answer
x = 168,321,760.95
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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.