Finding the Fourth Proportional to 1,348,651,708.70, 2,022,977,563.05 and 379,303,324.70
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Solution
The fourth proportional to 1,348,651,708.70, 2,022,977,563.05 and 379,303,324.70 is: 568,954,987.05
Step by Step Solution
- Step 1: Write the proportion equation
1,348,651,708.70 : 2,022,977,563.05 = 379,303,324.70 : x - Step 2: Convert to fraction form
1,348,651,708.70/2,022,977,563.05 = 379,303,324.70/x - Step 3: Cross multiply
1,348,651,708.70x = 2,022,977,563.05 × 379,303,324.70 - Step 4: Simplify right side
1,348,651,708.70x = 767,322,115,458,368,768 - Step 5: Solve for x
x = 767,322,115,458,368,768/1,348,651,708.70 - Step 6: Final answer
x = 568,954,987.05
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Double scale
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Similar ratio
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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.