Home / 128,682,251.76-177,582,696.24-69,945,055.08

Finding the Fourth Proportional to 128,682,251.76, 177,582,696.24 and 69,945,055.08

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Solution

The fourth proportional to 128,682,251.76, 177,582,696.24 and 69,945,055.08 is: 96,524,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,682,251.76 : 177,582,696.24 = 69,945,055.08 : x
  2. Step 2: Convert to fraction form
    128,682,251.76/177,582,696.24 = 69,945,055.08/x
  3. Step 3: Cross multiply
    128,682,251.76x = 177,582,696.24 × 69,945,055.08
  4. Step 4: Simplify right side
    128,682,251.76x = 12,421,031,469,761,710
  5. Step 5: Solve for x
    x = 12,421,031,469,761,710/128,682,251.76
  6. Step 6: Final answer
    x = 96,524,822.19

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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.