Finding the Fourth Proportional to 1,459,489,455.26, 2,189,515,846.62 and 476,651,770.08
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Solution
The fourth proportional to 1,459,489,455.26, 2,189,515,846.62 and 476,651,770.08 is: 715,069,643.12
Step by Step Solution
- Step 1: Write the proportion equation
1,459,489,455.26 : 2,189,515,846.62 = 476,651,770.08 : x - Step 2: Convert to fraction form
1,459,489,455.26/2,189,515,846.62 = 476,651,770.08/x - Step 3: Cross multiply
1,459,489,455.26x = 2,189,515,846.62 × 476,651,770.08 - Step 4: Simplify right side
1,459,489,455.26x = 1,043,636,603,909,632,640 - Step 5: Solve for x
x = 1,043,636,603,909,632,640/1,459,489,455.26 - Step 6: Final answer
x = 715,069,643.12
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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.