Finding the Fourth Proportional to 3,121,458,093,929.20, 4,307,262,808,691 and 1,732,597,747,340.70
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Solution
The fourth proportional to 3,121,458,093,929.20, 4,307,262,808,691 and 1,732,597,747,340.70 is: 2,390,790,974,915.35
Step by Step Solution
- Step 1: Write the proportion equation
3,121,458,093,929.20 : 4,307,262,808,691 = 1,732,597,747,340.70 : x - Step 2: Convert to fraction form
3,121,458,093,929.20/4,307,262,808,691 = 1,732,597,747,340.70/x - Step 3: Cross multiply
3,121,458,093,929.20x = 4,307,262,808,691 × 1,732,597,747,340.70 - Step 4: Simplify right side
3,121,458,093,929.20x = 7,462,753,839,542,402,570,780,672 - Step 5: Solve for x
x = 7,462,753,839,542,402,570,780,672/3,121,458,093,929.20 - Step 6: Final answer
x = 2,390,790,974,915.35
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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.