Finding the Fourth Proportional to 1,418,454,982,634.40, 1,957,469,763,725.20 and 768,134,687,801.31
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Solution
The fourth proportional to 1,418,454,982,634.40, 1,957,469,763,725.20 and 768,134,687,801.31 is: 1,060,026,891,404.78
Step by Step Solution
- Step 1: Write the proportion equation
1,418,454,982,634.40 : 1,957,469,763,725.20 = 768,134,687,801.31 : x - Step 2: Convert to fraction form
1,418,454,982,634.40/1,957,469,763,725.20 = 768,134,687,801.31/x - Step 3: Cross multiply
1,418,454,982,634.40x = 1,957,469,763,725.20 × 768,134,687,801.31 - Step 4: Simplify right side
1,418,454,982,634.40x = 1,503,600,425,839,560,656,683,008 - Step 5: Solve for x
x = 1,503,600,425,839,560,656,683,008/1,418,454,982,634.40 - Step 6: Final answer
x = 1,060,026,891,404.78
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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.