Home / 1,201,214,062.20-1,801,821,093.30-511,143,828.60

Finding the Fourth Proportional to 1,201,214,062.20, 1,801,821,093.30 and 511,143,828.60

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Solution

The fourth proportional to 1,201,214,062.20, 1,801,821,093.30 and 511,143,828.60 is: 766,715,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,214,062.20 : 1,801,821,093.30 = 511,143,828.60 : x
  2. Step 2: Convert to fraction form
    1,201,214,062.20/1,801,821,093.30 = 511,143,828.60/x
  3. Step 3: Cross multiply
    1,201,214,062.20x = 1,801,821,093.30 × 511,143,828.60
  4. Step 4: Simplify right side
    1,201,214,062.20x = 920,989,732,081,599,872
  5. Step 5: Solve for x
    x = 920,989,732,081,599,872/1,201,214,062.20
  6. Step 6: Final answer
    x = 766,715,742.90

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Double scale
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Similar ratio
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1.5x scale

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.