Finding the Fourth Proportional to 3,121,458,093,934.20, 4,307,262,808,698 and 1,732,597,747,345.70
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Solution
The fourth proportional to 3,121,458,093,934.20, 4,307,262,808,698 and 1,732,597,747,345.70 is: 2,390,790,974,922.31
Step by Step Solution
- Step 1: Write the proportion equation
3,121,458,093,934.20 : 4,307,262,808,698 = 1,732,597,747,345.70 : x - Step 2: Convert to fraction form
3,121,458,093,934.20/4,307,262,808,698 = 1,732,597,747,345.70/x - Step 3: Cross multiply
3,121,458,093,934.20x = 4,307,262,808,698 × 1,732,597,747,345.70 - Step 4: Simplify right side
3,121,458,093,934.20x = 7,462,753,839,576,067,598,188,544 - Step 5: Solve for x
x = 7,462,753,839,576,067,598,188,544/3,121,458,093,934.20 - Step 6: Final answer
x = 2,390,790,974,922.31
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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.