Finding the Fourth Proportional to 1,177,639,706.88, 1,625,153,902.56 and 649,022,755.68
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Solution
The fourth proportional to 1,177,639,706.88, 1,625,153,902.56 and 649,022,755.68 is: 895,657,524.18
Step by Step Solution
- Step 1: Write the proportion equation
1,177,639,706.88 : 1,625,153,902.56 = 649,022,755.68 : x - Step 2: Convert to fraction form
1,177,639,706.88/1,625,153,902.56 = 649,022,755.68/x - Step 3: Cross multiply
1,177,639,706.88x = 1,625,153,902.56 × 649,022,755.68 - Step 4: Simplify right side
1,177,639,706.88x = 1,054,761,864,243,597,312 - Step 5: Solve for x
x = 1,054,761,864,243,597,312/1,177,639,706.88 - Step 6: Final answer
x = 895,657,524.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.