Home / 2,381,138,287.38-3,286,154,697.48-1,428,554,745.54

Finding the Fourth Proportional to 2,381,138,287.38, 3,286,154,697.48 and 1,428,554,745.54

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Solution

The fourth proportional to 2,381,138,287.38, 3,286,154,697.48 and 1,428,554,745.54 is: 1,971,515,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381,138,287.38 : 3,286,154,697.48 = 1,428,554,745.54 : x
  2. Step 2: Convert to fraction form
    2,381,138,287.38/3,286,154,697.48 = 1,428,554,745.54/x
  3. Step 3: Cross multiply
    2,381,138,287.38x = 3,286,154,697.48 × 1,428,554,745.54
  4. Step 4: Simplify right side
    2,381,138,287.38x = 4,694,451,887,663,617,024
  5. Step 5: Solve for x
    x = 4,694,451,887,663,617,024/2,381,138,287.38
  6. Step 6: Final answer
    x = 1,971,515,855.48

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Double scale
Find fourth proportional to 2,381,138,288.38, 3,286,154,698.86 and 1,428,554,746.54
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1.5x scale

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.