Home / 262,238,819,354.36-392,738,593,625.84-128,025,222,961.40

Finding the Fourth Proportional to 262,238,819,354.36, 392,738,593,625.84 and 128,025,222,961.40

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Solution

The fourth proportional to 262,238,819,354.36, 392,738,593,625.84 and 128,025,222,961.40 is: 191,735,327,890.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,238,819,354.36 : 392,738,593,625.84 = 128,025,222,961.40 : x
  2. Step 2: Convert to fraction form
    262,238,819,354.36/392,738,593,625.84 = 128,025,222,961.40/x
  3. Step 3: Cross multiply
    262,238,819,354.36x = 392,738,593,625.84 × 128,025,222,961.40
  4. Step 4: Simplify right side
    262,238,819,354.36x = 50,280,446,014,494,835,998,720
  5. Step 5: Solve for x
    x = 50,280,446,014,494,835,998,720/262,238,819,354.36
  6. Step 6: Final answer
    x = 191,735,327,890.38

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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.