Finding the Fourth Proportional to 2,861,744,889.60, 4,292,617,334.40 and 2,655,120,628.80
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Solution
The fourth proportional to 2,861,744,889.60, 4,292,617,334.40 and 2,655,120,628.80 is: 3,982,680,943.20
Step by Step Solution
- Step 1: Write the proportion equation
2,861,744,889.60 : 4,292,617,334.40 = 2,655,120,628.80 : x - Step 2: Convert to fraction form
2,861,744,889.60/4,292,617,334.40 = 2,655,120,628.80/x - Step 3: Cross multiply
2,861,744,889.60x = 4,292,617,334.40 × 2,655,120,628.80 - Step 4: Simplify right side
2,861,744,889.60x = 11,397,416,836,109,907,968 - Step 5: Solve for x
x = 11,397,416,836,109,907,968/2,861,744,889.60 - Step 6: Final answer
x = 3,982,680,943.20
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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.