Home / 101,789,549.78-140,458,339.24-57,125,277.70

Finding the Fourth Proportional to 101,789,549.78, 140,458,339.24 and 57,125,277.70

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Solution

The fourth proportional to 101,789,549.78, 140,458,339.24 and 57,125,277.70 is: 78,826,575.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,789,549.78 : 140,458,339.24 = 57,125,277.70 : x
  2. Step 2: Convert to fraction form
    101,789,549.78/140,458,339.24 = 57,125,277.70/x
  3. Step 3: Cross multiply
    101,789,549.78x = 140,458,339.24 × 57,125,277.70
  4. Step 4: Simplify right side
    101,789,549.78x = 8,023,721,634,086,068
  5. Step 5: Solve for x
    x = 8,023,721,634,086,068/101,789,549.78
  6. Step 6: Final answer
    x = 78,826,575.53

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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.