Finding the Fourth Proportional to 3,453,393,430.80, 5,180,090,146.20 and 2,419,421,821.20
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Solution
The fourth proportional to 3,453,393,430.80, 5,180,090,146.20 and 2,419,421,821.20 is: 3,629,132,731.80
Step by Step Solution
- Step 1: Write the proportion equation
3,453,393,430.80 : 5,180,090,146.20 = 2,419,421,821.20 : x - Step 2: Convert to fraction form
3,453,393,430.80/5,180,090,146.20 = 2,419,421,821.20/x - Step 3: Cross multiply
3,453,393,430.80x = 5,180,090,146.20 × 2,419,421,821.20 - Step 4: Simplify right side
3,453,393,430.80x = 12,532,823,135,499,376,640 - Step 5: Solve for x
x = 12,532,823,135,499,376,640/3,453,393,430.80 - Step 6: Final answer
x = 3,629,132,731.80
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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.