Finding the Fourth Proportional to 1,631,543,138,584.40, 2,251,536,531,065.50 and 889,966,135,231.12
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Solution
The fourth proportional to 1,631,543,138,584.40, 2,251,536,531,065.50 and 889,966,135,231.12 is: 1,228,157,084,845.84
Step by Step Solution
- Step 1: Write the proportion equation
1,631,543,138,584.40 : 2,251,536,531,065.50 = 889,966,135,231.12 : x - Step 2: Convert to fraction form
1,631,543,138,584.40/2,251,536,531,065.50 = 889,966,135,231.12/x - Step 3: Cross multiply
1,631,543,138,584.40x = 2,251,536,531,065.50 × 889,966,135,231.12 - Step 4: Simplify right side
1,631,543,138,584.40x = 2,003,791,264,884,045,457,129,472 - Step 5: Solve for x
x = 2,003,791,264,884,045,457,129,472/1,631,543,138,584.40 - Step 6: Final answer
x = 1,228,157,084,845.84
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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.