Home / 75,638,121.39-104,383,391.72-42,150,609.72

Finding the Fourth Proportional to 75,638,121.39, 104,383,391.72 and 42,150,609.72

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Solution

The fourth proportional to 75,638,121.39, 104,383,391.72 and 42,150,609.72 is: 58,169,392.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,638,121.39 : 104,383,391.72 = 42,150,609.72 : x
  2. Step 2: Convert to fraction form
    75,638,121.39/104,383,391.72 = 42,150,609.72/x
  3. Step 3: Cross multiply
    75,638,121.39x = 104,383,391.72 × 42,150,609.72
  4. Step 4: Simplify right side
    75,638,121.39x = 4,399,823,605,428,846.50
  5. Step 5: Solve for x
    x = 4,399,823,605,428,846.50/75,638,121.39
  6. Step 6: Final answer
    x = 58,169,392.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.