Home / 12,457,128,754.45-18,685,741,609.64-3,013,757,435.76

Finding the Fourth Proportional to 12,457,128,754.45, 18,685,741,609.64 and 3,013,757,435.76

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Solution

The fourth proportional to 12,457,128,754.45, 18,685,741,609.64 and 3,013,757,435.76 is: 4,520,647,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,128,754.45 : 18,685,741,609.64 = 3,013,757,435.76 : x
  2. Step 2: Convert to fraction form
    12,457,128,754.45/18,685,741,609.64 = 3,013,757,435.76/x
  3. Step 3: Cross multiply
    12,457,128,754.45x = 18,685,741,609.64 × 3,013,757,435.76
  4. Step 4: Simplify right side
    12,457,128,754.45x = 56,314,292,718,742,585,344
  5. Step 5: Solve for x
    x = 56,314,292,718,742,585,344/12,457,128,754.45
  6. Step 6: Final answer
    x = 4,520,647,881.93

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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.