Finding the Fourth Proportional to 1,418,454,982,716.80, 1,957,469,763,839.10 and 768,134,687,883.68
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Solution
The fourth proportional to 1,418,454,982,716.80, 1,957,469,763,839.10 and 768,134,687,883.68 is: 1,060,026,891,518.55
Step by Step Solution
- Step 1: Write the proportion equation
1,418,454,982,716.80 : 1,957,469,763,839.10 = 768,134,687,883.68 : x - Step 2: Convert to fraction form
1,418,454,982,716.80/1,957,469,763,839.10 = 768,134,687,883.68/x - Step 3: Cross multiply
1,418,454,982,716.80x = 1,957,469,763,839.10 × 768,134,687,883.68 - Step 4: Simplify right side
1,418,454,982,716.80x = 1,503,600,426,088,288,118,374,400 - Step 5: Solve for x
x = 1,503,600,426,088,288,118,374,400/1,418,454,982,716.80 - Step 6: Final answer
x = 1,060,026,891,518.55
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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.