Finding the Fourth Proportional to 1,183,460,419.80, 1,775,190,629.70 and 493,862,578.20
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Solution
The fourth proportional to 1,183,460,419.80, 1,775,190,629.70 and 493,862,578.20 is: 740,793,867.30
Step by Step Solution
- Step 1: Write the proportion equation
1,183,460,419.80 : 1,775,190,629.70 = 493,862,578.20 : x - Step 2: Convert to fraction form
1,183,460,419.80/1,775,190,629.70 = 493,862,578.20/x - Step 3: Cross multiply
1,183,460,419.80x = 1,775,190,629.70 × 493,862,578.20 - Step 4: Simplify right side
1,183,460,419.80x = 876,700,221,180,123,520 - Step 5: Solve for x
x = 876,700,221,180,123,520/1,183,460,419.80 - Step 6: Final answer
x = 740,793,867.30
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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.