Finding the Fourth Proportional to 5,256,582,446.80, 7,884,873,670.20 and 3,188,639,227.60
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Solution
The fourth proportional to 5,256,582,446.80, 7,884,873,670.20 and 3,188,639,227.60 is: 4,782,958,841.40
Step by Step Solution
- Step 1: Write the proportion equation
5,256,582,446.80 : 7,884,873,670.20 = 3,188,639,227.60 : x - Step 2: Convert to fraction form
5,256,582,446.80/7,884,873,670.20 = 3,188,639,227.60/x - Step 3: Cross multiply
5,256,582,446.80x = 7,884,873,670.20 × 3,188,639,227.60 - Step 4: Simplify right side
5,256,582,446.80x = 25,142,017,489,470,103,552 - Step 5: Solve for x
x = 25,142,017,489,470,103,552/5,256,582,446.80 - Step 6: Final answer
x = 4,782,958,841.40
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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.