Home / 77,042,809.36-106,319,067.74-42,235,745.73

Finding the Fourth Proportional to 77,042,809.36, 106,319,067.74 and 42,235,745.73

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Solution

The fourth proportional to 77,042,809.36, 106,319,067.74 and 42,235,745.73 is: 58,285,324.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,042,809.36 : 106,319,067.74 = 42,235,745.73 : x
  2. Step 2: Convert to fraction form
    77,042,809.36/106,319,067.74 = 42,235,745.73/x
  3. Step 3: Cross multiply
    77,042,809.36x = 106,319,067.74 × 42,235,745.73
  4. Step 4: Simplify right side
    77,042,809.36x = 4,490,465,110,865,794.50
  5. Step 5: Solve for x
    x = 4,490,465,110,865,794.50/77,042,809.36
  6. Step 6: Final answer
    x = 58,285,324.07

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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.