Home / 147,115,389.06-203,016,756.60-81,042,067.98

Finding the Fourth Proportional to 147,115,389.06, 203,016,756.60 and 81,042,067.98

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Solution

The fourth proportional to 147,115,389.06, 203,016,756.60 and 81,042,067.98 is: 111,836,687.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,115,389.06 : 203,016,756.60 = 81,042,067.98 : x
  2. Step 2: Convert to fraction form
    147,115,389.06/203,016,756.60 = 81,042,067.98/x
  3. Step 3: Cross multiply
    147,115,389.06x = 203,016,756.60 × 81,042,067.98
  4. Step 4: Simplify right side
    147,115,389.06x = 16,452,897,789,456,314
  5. Step 5: Solve for x
    x = 16,452,897,789,456,314/147,115,389.06
  6. Step 6: Final answer
    x = 111,836,687.48

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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.