Finding the Fourth Proportional to 1,209,981,515.20, 1,814,972,272.80 and 1,183,107,659.20
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Solution
The fourth proportional to 1,209,981,515.20, 1,814,972,272.80 and 1,183,107,659.20 is: 1,774,661,488.80
Step by Step Solution
- Step 1: Write the proportion equation
1,209,981,515.20 : 1,814,972,272.80 = 1,183,107,659.20 : x - Step 2: Convert to fraction form
1,209,981,515.20/1,814,972,272.80 = 1,183,107,659.20/x - Step 3: Cross multiply
1,209,981,515.20x = 1,814,972,272.80 × 1,183,107,659.20 - Step 4: Simplify right side
1,209,981,515.20x = 2,147,307,597,185,311,744 - Step 5: Solve for x
x = 2,147,307,597,185,311,744/1,209,981,515.20 - Step 6: Final answer
x = 1,774,661,488.80
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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.