Finding the Fourth Proportional to 1,281,744,067.80, 1,922,616,101.70 and 850,922,563.80
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Solution
The fourth proportional to 1,281,744,067.80, 1,922,616,101.70 and 850,922,563.80 is: 1,276,383,845.70
Step by Step Solution
- Step 1: Write the proportion equation
1,281,744,067.80 : 1,922,616,101.70 = 850,922,563.80 : x - Step 2: Convert to fraction form
1,281,744,067.80/1,922,616,101.70 = 850,922,563.80/x - Step 3: Cross multiply
1,281,744,067.80x = 1,922,616,101.70 × 850,922,563.80 - Step 4: Simplify right side
1,281,744,067.80x = 1,635,997,422,461,725,440 - Step 5: Solve for x
x = 1,635,997,422,461,725,440/1,281,744,067.80 - Step 6: Final answer
x = 1,276,383,845.70
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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.