Home / 31,455,098,382.09-43,408,034,107.21-16,987,191,943.76

Finding the Fourth Proportional to 31,455,098,382.09, 43,408,034,107.21 and 16,987,191,943.76

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Solution

The fourth proportional to 31,455,098,382.09, 43,408,034,107.21 and 16,987,191,943.76 is: 23,442,323,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455,098,382.09 : 43,408,034,107.21 = 16,987,191,943.76 : x
  2. Step 2: Convert to fraction form
    31,455,098,382.09/43,408,034,107.21 = 16,987,191,943.76/x
  3. Step 3: Cross multiply
    31,455,098,382.09x = 43,408,034,107.21 × 16,987,191,943.76
  4. Step 4: Simplify right side
    31,455,098,382.09x = 737,380,607,280,457,056,256
  5. Step 5: Solve for x
    x = 737,380,607,280,457,056,256/31,455,098,382.09
  6. Step 6: Final answer
    x = 23,442,323,985.87

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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.