Home / 20,810,121,455.35-28,713,045,402.77-11,777,879,370.81

Finding the Fourth Proportional to 20,810,121,455.35, 28,713,045,402.77 and 11,777,879,370.81

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Solution

The fourth proportional to 20,810,121,455.35, 28,713,045,402.77 and 11,777,879,370.81 is: 16,250,687,716.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,121,455.35 : 28,713,045,402.77 = 11,777,879,370.81 : x
  2. Step 2: Convert to fraction form
    20,810,121,455.35/28,713,045,402.77 = 11,777,879,370.81/x
  3. Step 3: Cross multiply
    20,810,121,455.35x = 28,713,045,402.77 × 11,777,879,370.81
  4. Step 4: Simplify right side
    20,810,121,455.35x = 338,178,785,122,415,673,344
  5. Step 5: Solve for x
    x = 338,178,785,122,415,673,344/20,810,121,455.35
  6. Step 6: Final answer
    x = 16,250,687,716.94

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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.