Finding the Fourth Proportional to 1,022,489,797.80, 1,533,734,696.70 and 780,625,093.80
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Solution
The fourth proportional to 1,022,489,797.80, 1,533,734,696.70 and 780,625,093.80 is: 1,170,937,640.70
Step by Step Solution
- Step 1: Write the proportion equation
1,022,489,797.80 : 1,533,734,696.70 = 780,625,093.80 : x - Step 2: Convert to fraction form
1,022,489,797.80/1,533,734,696.70 = 780,625,093.80/x - Step 3: Cross multiply
1,022,489,797.80x = 1,533,734,696.70 × 780,625,093.80 - Step 4: Simplify right side
1,022,489,797.80x = 1,197,271,791,475,751,936 - Step 5: Solve for x
x = 1,197,271,791,475,751,936/1,022,489,797.80 - Step 6: Final answer
x = 1,170,937,640.70
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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.