Finding the Fourth Proportional to 2,787,585,947.20, 4,181,378,920.80 and 2,555,133,653.80
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Solution
The fourth proportional to 2,787,585,947.20, 4,181,378,920.80 and 2,555,133,653.80 is: 3,832,700,480.70
Step by Step Solution
- Step 1: Write the proportion equation
2,787,585,947.20 : 4,181,378,920.80 = 2,555,133,653.80 : x - Step 2: Convert to fraction form
2,787,585,947.20/4,181,378,920.80 = 2,555,133,653.80/x - Step 3: Cross multiply
2,787,585,947.20x = 4,181,378,920.80 × 2,555,133,653.80 - Step 4: Simplify right side
2,787,585,947.20x = 10,683,981,999,826,006,016 - Step 5: Solve for x
x = 10,683,981,999,826,006,016/2,787,585,947.20 - Step 6: Final answer
x = 3,832,700,480.70
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1.5x scale
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.