Home / 427,273,983.60-640,903,971.60-136,137,151.44

Finding the Fourth Proportional to 427,273,983.60, 640,903,971.60 and 136,137,151.44

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Solution

The fourth proportional to 427,273,983.60, 640,903,971.60 and 136,137,151.44 is: 204,203,495.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,273,983.60 : 640,903,971.60 = 136,137,151.44 : x
  2. Step 2: Convert to fraction form
    427,273,983.60/640,903,971.60 = 136,137,151.44/x
  3. Step 3: Cross multiply
    427,273,983.60x = 640,903,971.60 × 136,137,151.44
  4. Step 4: Simplify right side
    427,273,983.60x = 87,250,841,040,206,656
  5. Step 5: Solve for x
    x = 87,250,841,040,206,656/427,273,983.60
  6. Step 6: Final answer
    x = 204,203,495.62

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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.