Finding the Fourth Proportional to 858,793,902.66, 1,288,190,657.16 and 245,378,135.70
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Solution
The fourth proportional to 858,793,902.66, 1,288,190,657.16 and 245,378,135.70 is: 368,067,147.31
Step by Step Solution
- Step 1: Write the proportion equation
858,793,902.66 : 1,288,190,657.16 = 245,378,135.70 : x - Step 2: Convert to fraction form
858,793,902.66/1,288,190,657.16 = 245,378,135.70/x - Step 3: Cross multiply
858,793,902.66x = 1,288,190,657.16 × 245,378,135.70 - Step 4: Simplify right side
858,793,902.66x = 316,093,821,880,078,656 - Step 5: Solve for x
x = 316,093,821,880,078,656/858,793,902.66 - Step 6: Final answer
x = 368,067,147.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.