Finding the Fourth Proportional to 2,178,981,648.10, 3,268,472,472.15 and 2,010,621,139.30
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Solution
The fourth proportional to 2,178,981,648.10, 3,268,472,472.15 and 2,010,621,139.30 is: 3,015,931,708.95
Step by Step Solution
- Step 1: Write the proportion equation
2,178,981,648.10 : 3,268,472,472.15 = 2,010,621,139.30 : x - Step 2: Convert to fraction form
2,178,981,648.10/3,268,472,472.15 = 2,010,621,139.30/x - Step 3: Cross multiply
2,178,981,648.10x = 3,268,472,472.15 × 2,010,621,139.30 - Step 4: Simplify right side
2,178,981,648.10x = 6,571,659,845,724,920,832 - Step 5: Solve for x
x = 6,571,659,845,724,920,832/2,178,981,648.10 - Step 6: Final answer
x = 3,015,931,708.95
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Double scale
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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.