Home / 1,321,176,998.53-1,821,531,761.23-1,082,141,590.48

Finding the Fourth Proportional to 1,321,176,998.53, 1,821,531,761.23 and 1,082,141,590.48

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Solution

The fourth proportional to 1,321,176,998.53, 1,821,531,761.23 and 1,082,141,590.48 is: 1,491,969,114.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,176,998.53 : 1,821,531,761.23 = 1,082,141,590.48 : x
  2. Step 2: Convert to fraction form
    1,321,176,998.53/1,821,531,761.23 = 1,082,141,590.48/x
  3. Step 3: Cross multiply
    1,321,176,998.53x = 1,821,531,761.23 × 1,082,141,590.48
  4. Step 4: Simplify right side
    1,321,176,998.53x = 1,971,155,277,207,267,840
  5. Step 5: Solve for x
    x = 1,971,155,277,207,267,840/1,321,176,998.53
  6. Step 6: Final answer
    x = 1,491,969,114.96

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Double scale
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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.