Finding the Fourth Proportional to 1,379,306,838,403.10, 2,068,960,257,604.60 and 815,084,856,911.90
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Solution
The fourth proportional to 1,379,306,838,403.10, 2,068,960,257,604.60 and 815,084,856,911.90 is: 1,222,627,285,367.82
Step by Step Solution
- Step 1: Write the proportion equation
1,379,306,838,403.10 : 2,068,960,257,604.60 = 815,084,856,911.90 : x - Step 2: Convert to fraction form
1,379,306,838,403.10/2,068,960,257,604.60 = 815,084,856,911.90/x - Step 3: Cross multiply
1,379,306,838,403.10x = 2,068,960,257,604.60 × 815,084,856,911.90 - Step 4: Simplify right side
1,379,306,838,403.10x = 1,686,378,175,526,053,246,664,704 - Step 5: Solve for x
x = 1,686,378,175,526,053,246,664,704/1,379,306,838,403.10 - Step 6: Final answer
x = 1,222,627,285,367.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.