Home / 142,458,110.73-213,702,659.78-45,391,002.57

Finding the Fourth Proportional to 142,458,110.73, 213,702,659.78 and 45,391,002.57

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Solution

The fourth proportional to 142,458,110.73, 213,702,659.78 and 45,391,002.57 is: 68,091,440.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,458,110.73 : 213,702,659.78 = 45,391,002.57 : x
  2. Step 2: Convert to fraction form
    142,458,110.73/213,702,659.78 = 45,391,002.57/x
  3. Step 3: Cross multiply
    142,458,110.73x = 213,702,659.78 × 45,391,002.57
  4. Step 4: Simplify right side
    142,458,110.73x = 9,700,177,979,062,860
  5. Step 5: Solve for x
    x = 9,700,177,979,062,860/142,458,110.73
  6. Step 6: Final answer
    x = 68,091,440.56

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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.