Finding the Fourth Proportional to 1,627,128,097.20, 2,440,692,145.80 and 851,011,660.80
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Solution
The fourth proportional to 1,627,128,097.20, 2,440,692,145.80 and 851,011,660.80 is: 1,276,517,491.20
Step by Step Solution
- Step 1: Write the proportion equation
1,627,128,097.20 : 2,440,692,145.80 = 851,011,660.80 : x - Step 2: Convert to fraction form
1,627,128,097.20/2,440,692,145.80 = 851,011,660.80/x - Step 3: Cross multiply
1,627,128,097.20x = 2,440,692,145.80 × 851,011,660.80 - Step 4: Simplify right side
1,627,128,097.20x = 2,077,057,476,498,773,760 - Step 5: Solve for x
x = 2,077,057,476,498,773,760/1,627,128,097.20 - Step 6: Final answer
x = 1,276,517,491.20
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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.