Finding the Fourth Proportional to 711,550,598.88, 981,800,177.84 and 447,079,354.08
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Solution
The fourth proportional to 711,550,598.88, 981,800,177.84 and 447,079,354.08 is: 616,881,765.03
Step by Step Solution
- Step 1: Write the proportion equation
711,550,598.88 : 981,800,177.84 = 447,079,354.08 : x - Step 2: Convert to fraction form
711,550,598.88/981,800,177.84 = 447,079,354.08/x - Step 3: Cross multiply
711,550,598.88x = 981,800,177.84 × 447,079,354.08 - Step 4: Simplify right side
711,550,598.88x = 438,942,589,344,336,320 - Step 5: Solve for x
x = 438,942,589,344,336,320/711,550,598.88 - Step 6: Final answer
x = 616,881,765.03
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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.