Finding the Fourth Proportional to 703,722,759.20, 1,055,584,138.80 and 193,119,495.20
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Solution
The fourth proportional to 703,722,759.20, 1,055,584,138.80 and 193,119,495.20 is: 289,679,242.80
Step by Step Solution
- Step 1: Write the proportion equation
703,722,759.20 : 1,055,584,138.80 = 193,119,495.20 : x - Step 2: Convert to fraction form
703,722,759.20/1,055,584,138.80 = 193,119,495.20/x - Step 3: Cross multiply
703,722,759.20x = 1,055,584,138.80 × 193,119,495.20 - Step 4: Simplify right side
703,722,759.20x = 203,853,876,026,182,720 - Step 5: Solve for x
x = 203,853,876,026,182,720/703,722,759.20 - Step 6: Final answer
x = 289,679,242.80
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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.