Home / 12,457,128,791.28-18,685,741,664.88-3,013,757,472.72

Finding the Fourth Proportional to 12,457,128,791.28, 18,685,741,664.88 and 3,013,757,472.72

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Solution

The fourth proportional to 12,457,128,791.28, 18,685,741,664.88 and 3,013,757,472.72 is: 4,520,647,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,128,791.28 : 18,685,741,664.88 = 3,013,757,472.72 : x
  2. Step 2: Convert to fraction form
    12,457,128,791.28/18,685,741,664.88 = 3,013,757,472.72/x
  3. Step 3: Cross multiply
    12,457,128,791.28x = 18,685,741,664.88 × 3,013,757,472.72
  4. Step 4: Simplify right side
    12,457,128,791.28x = 56,314,293,575,847,550,976
  5. Step 5: Solve for x
    x = 56,314,293,575,847,550,976/12,457,128,791.28
  6. Step 6: Final answer
    x = 4,520,647,937.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.