Home / 2,251,945,120.13-3,107,684,216.42-1,248,360,144.38

Finding the Fourth Proportional to 2,251,945,120.13, 3,107,684,216.42 and 1,248,360,144.38

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Solution

The fourth proportional to 2,251,945,120.13, 3,107,684,216.42 and 1,248,360,144.38 is: 1,722,736,971.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251,945,120.13 : 3,107,684,216.42 = 1,248,360,144.38 : x
  2. Step 2: Convert to fraction form
    2,251,945,120.13/3,107,684,216.42 = 1,248,360,144.38/x
  3. Step 3: Cross multiply
    2,251,945,120.13x = 3,107,684,216.42 × 1,248,360,144.38
  4. Step 4: Simplify right side
    2,251,945,120.13x = 3,879,509,117,108,408,320
  5. Step 5: Solve for x
    x = 3,879,509,117,108,408,320/2,251,945,120.13
  6. Step 6: Final answer
    x = 1,722,736,971.89

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Double scale
Find fourth proportional to 2,251,945,121.13, 3,107,684,217.80 and 1,248,360,145.38
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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.