Finding the Fourth Proportional to 853,017,682.62, 1,279,526,523.93 and 206,785,426.62
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Solution
The fourth proportional to 853,017,682.62, 1,279,526,523.93 and 206,785,426.62 is: 310,178,139.93
Step by Step Solution
- Step 1: Write the proportion equation
853,017,682.62 : 1,279,526,523.93 = 206,785,426.62 : x - Step 2: Convert to fraction form
853,017,682.62/1,279,526,523.93 = 206,785,426.62/x - Step 3: Cross multiply
853,017,682.62x = 1,279,526,523.93 × 206,785,426.62 - Step 4: Simplify right side
853,017,682.62x = 264,587,438,122,470,720 - Step 5: Solve for x
x = 264,587,438,122,470,720/853,017,682.62 - Step 6: Final answer
x = 310,178,139.93
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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.