Home / 20,810,121,454.35-28,713,045,401.39-11,777,879,369.81

Finding the Fourth Proportional to 20,810,121,454.35, 28,713,045,401.39 and 11,777,879,369.81

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Solution

The fourth proportional to 20,810,121,454.35, 28,713,045,401.39 and 11,777,879,369.81 is: 16,250,687,715.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,121,454.35 : 28,713,045,401.39 = 11,777,879,369.81 : x
  2. Step 2: Convert to fraction form
    20,810,121,454.35/28,713,045,401.39 = 11,777,879,369.81/x
  3. Step 3: Cross multiply
    20,810,121,454.35x = 28,713,045,401.39 × 11,777,879,369.81
  4. Step 4: Simplify right side
    20,810,121,454.35x = 338,178,785,077,541,928,960
  5. Step 5: Solve for x
    x = 338,178,785,077,541,928,960/20,810,121,454.35
  6. Step 6: Final answer
    x = 16,250,687,715.56

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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.