Finding the Fourth Proportional to 5,310,881,201.20, 7,966,321,801.80 and 2,555,891,057.20
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Solution
The fourth proportional to 5,310,881,201.20, 7,966,321,801.80 and 2,555,891,057.20 is: 3,833,836,585.80
Step by Step Solution
- Step 1: Write the proportion equation
5,310,881,201.20 : 7,966,321,801.80 = 2,555,891,057.20 : x - Step 2: Convert to fraction form
5,310,881,201.20/7,966,321,801.80 = 2,555,891,057.20/x - Step 3: Cross multiply
5,310,881,201.20x = 7,966,321,801.80 × 2,555,891,057.20 - Step 4: Simplify right side
5,310,881,201.20x = 20,361,050,651,998,011,392 - Step 5: Solve for x
x = 20,361,050,651,998,011,392/5,310,881,201.20 - Step 6: Final answer
x = 3,833,836,585.80
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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.