Finding the Fourth Proportional to 1,227,205,473.44, 1,693,548,725.24 and 691,363,567.52
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Solution
The fourth proportional to 1,227,205,473.44, 1,693,548,725.24 and 691,363,567.52 is: 954,084,636.84
Step by Step Solution
- Step 1: Write the proportion equation
1,227,205,473.44 : 1,693,548,725.24 = 691,363,567.52 : x - Step 2: Convert to fraction form
1,227,205,473.44/1,693,548,725.24 = 691,363,567.52/x - Step 3: Cross multiply
1,227,205,473.44x = 1,693,548,725.24 × 691,363,567.52 - Step 4: Simplify right side
1,227,205,473.44x = 1,170,857,888,450,874,624 - Step 5: Solve for x
x = 1,170,857,888,450,874,624/1,227,205,473.44 - Step 6: Final answer
x = 954,084,636.84
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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.