Home / 207,917,639.68-286,928,610.24-115,099,697.56

Finding the Fourth Proportional to 207,917,639.68, 286,928,610.24 and 115,099,697.56

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Solution

The fourth proportional to 207,917,639.68, 286,928,610.24 and 115,099,697.56 is: 158,838,837.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,917,639.68 : 286,928,610.24 = 115,099,697.56 : x
  2. Step 2: Convert to fraction form
    207,917,639.68/286,928,610.24 = 115,099,697.56/x
  3. Step 3: Cross multiply
    207,917,639.68x = 286,928,610.24 × 115,099,697.56
  4. Step 4: Simplify right side
    207,917,639.68x = 33,025,396,259,935,120
  5. Step 5: Solve for x
    x = 33,025,396,259,935,120/207,917,639.68
  6. Step 6: Final answer
    x = 158,838,837.87

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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.