Finding the Fourth Proportional to 1,639,660,841.82, 2,457,515,229.21 and 753,122,840.22
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Solution
The fourth proportional to 1,639,660,841.82, 2,457,515,229.21 and 753,122,840.22 is: 1,128,776,636.06
Step by Step Solution
- Step 1: Write the proportion equation
1,639,660,841.82 : 2,457,515,229.21 = 753,122,840.22 : x - Step 2: Convert to fraction form
1,639,660,841.82/2,457,515,229.21 = 753,122,840.22/x - Step 3: Cross multiply
1,639,660,841.82x = 2,457,515,229.21 × 753,122,840.22 - Step 4: Simplify right side
1,639,660,841.82x = 1,850,810,849,306,539,520 - Step 5: Solve for x
x = 1,850,810,849,306,539,520/1,639,660,841.82 - Step 6: Final answer
x = 1,128,776,636.06
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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.