Finding the Fourth Proportional to 1,455,860,499, 2,183,790,748.50 and 486,512,115
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Solution
The fourth proportional to 1,455,860,499, 2,183,790,748.50 and 486,512,115 is: 729,768,172.50
Step by Step Solution
- Step 1: Write the proportion equation
1,455,860,499 : 2,183,790,748.50 = 486,512,115 : x - Step 2: Convert to fraction form
1,455,860,499/2,183,790,748.50 = 486,512,115/x - Step 3: Cross multiply
1,455,860,499x = 2,183,790,748.50 × 486,512,115 - Step 4: Simplify right side
1,455,860,499x = 1,062,440,655,770,168,064 - Step 5: Solve for x
x = 1,062,440,655,770,168,064/1,455,860,499 - Step 6: Final answer
x = 729,768,172.50
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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.