Home / 262,238,819,355.36-392,738,593,627.34-128,025,222,962.40

Finding the Fourth Proportional to 262,238,819,355.36, 392,738,593,627.34 and 128,025,222,962.40

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Solution

The fourth proportional to 262,238,819,355.36, 392,738,593,627.34 and 128,025,222,962.40 is: 191,735,327,891.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,238,819,355.36 : 392,738,593,627.34 = 128,025,222,962.40 : x
  2. Step 2: Convert to fraction form
    262,238,819,355.36/392,738,593,627.34 = 128,025,222,962.40/x
  3. Step 3: Cross multiply
    262,238,819,355.36x = 392,738,593,627.34 × 128,025,222,962.40
  4. Step 4: Simplify right side
    262,238,819,355.36x = 50,280,446,015,079,614,251,008
  5. Step 5: Solve for x
    x = 50,280,446,015,079,614,251,008/262,238,819,355.36
  6. Step 6: Final answer
    x = 191,735,327,891.88

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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.