Finding the Fourth Proportional to 711,454,674.04, 981,838,134.58 and 393,914,917.24
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Solution
The fourth proportional to 711,454,674.04, 981,838,134.58 and 393,914,917.24 is: 543,619,574.99
Step by Step Solution
- Step 1: Write the proportion equation
711,454,674.04 : 981,838,134.58 = 393,914,917.24 : x - Step 2: Convert to fraction form
711,454,674.04/981,838,134.58 = 393,914,917.24/x - Step 3: Cross multiply
711,454,674.04x = 981,838,134.58 × 393,914,917.24 - Step 4: Simplify right side
711,454,674.04x = 386,760,687,526,156,736 - Step 5: Solve for x
x = 386,760,687,526,156,736/711,454,674.04 - Step 6: Final answer
x = 543,619,574.99
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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.