Home / 38,768,229,974.12-53,500,157,467.24-20,946,887,480.12

Finding the Fourth Proportional to 38,768,229,974.12, 53,500,157,467.24 and 20,946,887,480.12

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Solution

The fourth proportional to 38,768,229,974.12, 53,500,157,467.24 and 20,946,887,480.12 is: 28,906,704,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,768,229,974.12 : 53,500,157,467.24 = 20,946,887,480.12 : x
  2. Step 2: Convert to fraction form
    38,768,229,974.12/53,500,157,467.24 = 20,946,887,480.12/x
  3. Step 3: Cross multiply
    38,768,229,974.12x = 53,500,157,467.24 × 20,946,887,480.12
  4. Step 4: Simplify right side
    38,768,229,974.12x = 1,120,661,778,634,977,968,128
  5. Step 5: Solve for x
    x = 1,120,661,778,634,977,968,128/38,768,229,974.12
  6. Step 6: Final answer
    x = 28,906,704,778.19

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Double scale
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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.