Finding the Fourth Proportional to 220,901,134,121.88, 304,851,086,741.46 and 128,194,810,964.94
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Solution
The fourth proportional to 220,901,134,121.88, 304,851,086,741.46 and 128,194,810,964.94 is: 176,913,204,147.32
Step by Step Solution
- Step 1: Write the proportion equation
220,901,134,121.88 : 304,851,086,741.46 = 128,194,810,964.94 : x - Step 2: Convert to fraction form
220,901,134,121.88/304,851,086,741.46 = 128,194,810,964.94/x - Step 3: Cross multiply
220,901,134,121.88x = 304,851,086,741.46 × 128,194,810,964.94 - Step 4: Simplify right side
220,901,134,121.88x = 39,080,327,437,277,991,010,304 - Step 5: Solve for x
x = 39,080,327,437,277,991,010,304/220,901,134,121.88 - Step 6: Final answer
x = 176,913,204,147.32
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1.5x scale
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.